Characters / The World's Finest Assassin

Tuatha Dé Family

In General

• Covert Group with Mundane Front: The family has several to hide or fund their assassination operations, ranging from renowned doctors to mercantile businessmen to court knights.
• Impoverished Patrician: Averted. Despite only being a Baron, one of the lower nobility ranks, they are quite wealthy for producing skilled doctors, as well as the only ones who can perform surgery in this time period. Not to mention being skilled assassins for the King.
• Magical Eye: All of them have the Mystic Eyes of the Tuatha Dé, which gives them farsight, night vision, and the ability to see magic.
• Murder, Inc.: The family is the king's personal assassin's guild.
• Mystical White Hair: Both Lugh and his mother Esri have shinny silver hair and have high levels of mana. The fact that Dia also has silver hair is no coincidence.
• Named After Somebody Famous: Their family name is derived from Celtic Mythology's "Tuatha Dé Danann", considered to be Ireland's Pantheon of Gods.
• Wolf in Sheep's Clothing: The Tuatha Dé family is, on the surface, the source of all of the country's finest doctors - and they are, but they're also the family that serves as the royal family's finest assassins.

Lugh

Lugh Tuatha Dé/Illig Balor/"Allen Smith"

Voiced by: Kenji Akabane, Makoto Koichi (as a child), Junpei Morita (as "Allen Smith") (Japanese), Christian Banas, Mick Lauer (as "Allen Smith") (English)

The titular world's finest assassin, who is betrayed by his own organisation and dies. Regretting his former life as an emotionless tool, he accepts the goddess' task of assassinating the hero. Thus, he is reborn as Lugh Tuatha Dé, son and heir to a house of noble assassins. He later takes on the guise of Illig Balor, a merchant from Milteu.

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Tropes applied to "Allen Smith"

• Cold Sniper: Allen's known to be a cold and deadly sniper when he does his hitman work.
• Covered in Scars: Coming from a long life of fighting and killing.
• Experienced Protagonist: He's already the World's Finest Assassin at the start of the story. He carries over his knowledge and skills into his new life as Lugh.
• Face Death with Dignity: Though clearly not pleased by it, he takes his assassination rather well.
• Make It Look Like an Accident: He says he arranged "accidents" for leaders of other countries and/or would have other men Taking the Heat.
• Mr. Smith: "Allen Smith" is not his real name, but the last fake identity he was given before dying.
• My Greatest Second Chance: In his last moments, he regrets having lived as a tool to be eventually disposed of and hopes to be happier in his next life.
• No Name Given: His real name is unknown. "Allen Smith" is a Nom de Guerre.
• One Last Job: His assignment in America was supposed to be his last job for his bosses. Until they decide that he's a liability.
• Overzealous Underling: In the anime he explicitly instructs his trainee not to be this, stating to only follow the mission to the letter and nothing more.
• Professional Killer: The titular assassin.
• Retirony: In his old age, he was planning to retire before he was betrayed and killed.
• Sex God: Was also trained to be very good in the bedroom. Disturbingly, he was taught these skills as a boy so he could pose as a child prostitute and assassinate a pedophile.
• Undying Loyalty: To the Organization. He followed every order without question, seeing himself as merely a tool for them to use. He even admits he would have killed himself if ordered to. This is why he is frustrated and confused as to why they decided to assassinate him.
• Why Don't You Just Shoot Him?: Allen asks if he can just assassinate the hero once he's ready. The Goddess shoots this plan down: the world needs to be saved from the Demon King by the hero first.
• "World's Best" Character: He was apparently Earth's greatest assassin at the time of his death, which is why he was chosen by the goddess to reincarnate in the first place.
• You Have Outlived Your Usefulness: He was hoping to formally retire from the assassin business and pass on his skills to other assassins. His bosses decided otherwise.

Tropes applied to Lugh

• Above the Influence: Doesn't take advantage of the girls even though they're appreciative of all he's done for them, though they wish he would since he keeps dismissing any attempts at romance with them.
• The Ace: With his memories retained from Earth, he's able to utilize powerful magic, and can create new items based on altering some of the incantations. He also sets up a successful women's beauty store, which while successful on its own, is also used to collect intel on assassination targets.
• Always Someone Better: Lugh is this to almost everyone else on the planet. However no matter how powerful Lugh's combat abilities are, he will always be less powerful than the Hero.
• Anti-Hero: Of the pragmatic, edging into unscrupulous kind. Lugh is trying to save the world, and he treats people with kindness and goes to great lengths to help them, but he's doing so for his own reasons rather than any sense of altruism and isn't afraid to use emotional manipulation, brainwashing, torture, and of course assassination if it helps get the job done.
• The Archmage: He has an unreasonable amount of mana due to the combination of Rapid Recovery and Limitless Growth in a near constant training regime since he was a kid. And with the A-rank Spell Weaver, he's one of the only people capable of creating new spells without miracles from the Gods — if not the only person.
• Attractive Bent-Gender: Lugh, as a young boy, could pass as a girl when his mother dressed him up as one.
• Awesomeness by Analysis: Most mages only receive spells by divine revelation. Lugh manages to decipher the Language of Magic and figures out how to create his own spells, something nobody ever thought to do before.
• Beyond the Impossible: Lugh discovers how to kill demons, an invincible being only killable by the hero. This information is world changing and could theoretically make the hero useless with future advancements.
• Big Damn Heroes: He does this for all three of the main heroines.
  • He rescued Tarte in the forest when she was attacked by wolves after being abandoned by her family due to a famine.
  • He saves Maha before she's raped by the man who ordered thugs to kidnap her and her friends.
  • He also saves Dia from rebels who were attacking her family's castle as payback for her father siding with the royal family who lost their civil war.
• Bizarre and Improbable Ballistics: After the hero witnesses Lugh's ability to use firearms, Lugh formulates magic to manipulate bullet trajectory in midflight. This is so guns will still be usable when the time to assassinate the Hero arrives.
• Blade Enthusiast: For close quarter combat he specializes in knife fighting and prefers to keep his Gun Fu hidden as a secret trump card.
• Boring, but Practical: Allen had full access to over a hundred and twenty thousand different skills that he could pick five from in a world of Sword and Sorcery. The skills he picked: S Rank Rapid Recovery, A Rank Spell Weaver, B Rank Limitless Growth, C Rank Martial Arts, and an unknown D Rank skill. Even the Goddess pointed out how boring they are. However, they are all perfect for an Assassin.
• Celibate Hero: Downplayed. While Lugh realizes fairly early on that he's in love with Dia and wants to marry her, it takes him longer to acknowledge the very obvious feelings of Tarte and Maha as anything more than "infatuation" and "admiration," and longer still to open up to the idea of reciprocating those feelings.^note This may be due in part to the different power dynamics involved in his relationships with the girls; while Dia is his social peer and their relationship developed as more-or-less an equal partnership, Tarte and Maha are his social inferiors and also owed Lugh their lives from the moment they met him, creating an inherent power imbalance in their relationships with him. Between that and his very intentional manipulation of their feelings in order to increase their loyalty to him, it's likely that on a subconscious level Lugh did not feel it was appropriate to pursue romance with them. Tarte and Maha, of course, do not care about any of that.
• Character Catchphrase: "Everything is going according to plan" and variations thereof. Occasionally mutated to "is this part of the plan?" when Lugh's preparations have unintended (usually embarrassing or humiliating) consequences.
• The Chosen One: Once it becomes undeniable that Lugh has the highest odds of success to kill the Hero, the Goddess devotes all her attention on him. To sweeten the deal she even offers to provide a great reward after the deed is done... though Lugh notes she leaves the specifics of that reward rather vague.
• Combat Pragmatist: Lugh is willing to use every dirty trick in the book to win fights and successfully assassinate people. He uses a mix of melee, poison, magic, firearms, knives, explosives, and hidden weapons to beat his enemies. If there's even a single way to kill you, Lugh will figure it out and exploit it.
  • Highlighted in his "duel" with Setanta, who Lugh can't beat in a fair fight. Instead he stalls for as long as possible to buy enough time for Gungnir to land on top of him right when the duel starts.
• Crazy-Prepared: Gathers as much intel on his targets as possible to ensure a successful mission. When he found out from a target's wife that a corrupt noble liked to drink some wine while staring at the moon on a balcony before bed, Lugh uses this intel to snipe the noble from far away so as to avoid having to kill him up close where he was heavily guarded.
• Dual Wielding: Prefers two small knives in close combat.
• Enlightened Self-Interest: Whenever a character observes Lugh going out of his way to help someone and calls him "kind" for it, Lugh counters that he isn't; he is acting in pursuit of his own selfish goals, and the fact that his actions happen to directly benefit another person is merely a fortunate side-effect. The character giving the compliment generally brushes this argument off, with the unspoken assumption being that they don't think Lugh is giving himself enough credit — and considering that the series shows us plenty of individuals who pursue their own selfish goals to the active detriment of other people, they may have a point.
• Fantastic Nuke: He works on the development of weapons equal to megaton nuclear warheads. His first is Gungnir, which replicates a kinetic drop Kill Sat. He also experiments with storing mana in Fahr Stones to use as nuclear hand grenades.
• Gun Fu: When going all out against an opponent, Lugh utilizes an assortment of firearms in combat.
• Gun Kata: After the hero witnesses Lugh's ability to use firearms, Lugh formulates combat styles to obfuscate where he is firing. This is so guns will still be usable against the hero when the time to assassinate her arrives.
• Hitman with a Heart: He didn't start out as one, but Lugh resolved not to waste his second life as an emotionless tool. While still cunning and manipulative, he shows genuine kindness and affection for his loved ones. He also refrains from pointless cruelty, making him seem rather kind compared to the society he lives in.
• I'm Not a Hero, I'm...: When it's brought up in conversation, Lugh tends to downplay the good he's done for the people around him, arguing that because his actions were taken with the goal of furthering his own agenda first and foremost, they aren't heroic or worthy of praise. Since a lot of the people he helped were looking at short, painful lives filled with abject misery before Lugh came into the picture, it's little wonder that most of them consider this a Distinction Without a Difference.
• Improbable Aiming Skills: Allen gained these through his lifetime of assassination experience. Demonstrated as Lugh when he snipes a rabbit in the head from 30 meters away with a single shot. Taken to ridiculous extremes when he combines his skills with spells and his enhanced magical eyes. He becomes capable of sniping enemies from thousands of meters away and calculating atmospheric weapon drops..
• Mage Marksman: Lugh invented spells for summoning magical firearms. They are built with earth spells and fired with fire spells. In combat, he also uses other spells to supplement his accuracy and physical strength.
• Magnetic Weapons: Combining his magic with Dia and Tarte, he can create a railgun that kills demons.
• Meaningful Name: He's named after the Irish god Lugh, who presided over a multitude of domains and skills, which reflects his status as The Ace. His last name is taken from the Tuatha Dé Danann, a supernatural race in Irish myth who were likely the gods of pre-Christian Ireland.
• New Life in Another World Bonus: He was given five skills, one of each rank, when most people only have one or, rarely, two. Being an assassin, he gravitates towards those which are Boring, but Practical.
  • S-rank: Rapid Recovery
  • A-rank: Spell Weaver
  • B-rank: Limitless Growth
  • C-rank: Martial Arts
  • An as-of-yet unknown D-rank skill which he notes as being absurd for being a D-rank.
  • He also gets to choose which of the six magical affinities he has, from Fire, Water, Earth, Air, Light, and Dark. He chooses all of the elemental affinities, except for Light and Dark.
• Nice Job Breaking It, Hero: The Goddess is concerned that Lugh's strategy to save the Hero, by neutralizing the Demons and the Demon King with minimal or zero involvement from the Hero with said neutralization, is causing the Hero to have more stockpiled power than intended. Assuming the Goddess' end goal for killing the Hero is not nefarious, it has the ramification of invoking this situation.
• Nice to the Waiter: Lugh is unfailingly polite and kind to the villagers who work his family's land and makes a concerted effort to help with their problems, and is beloved by them as a result.
• Nocturnal Emission: Apparently, he lowered his guard enough that he had a wet dream while sleeping next to Tarte and Maha. And in enough quantities that the two young women could smell it. His mother later goes into his room after Tarte told her about it in the hopes of seeing it for herself.
• Not Distracted by the Sexy: Most of the time. When he's in serious mode, particular during training or a mission, he's not phased seeing Tarte or Maha in complete nudity. However when relaxed his mind can wander and he begins to realize his Battle Harem is incredibly attractive.
• Older Than They Look: Thanks to reincarnating with his past-life memories and experience fully intact, Lugh is effectively an old man in a teenager's body.
• Raging Stiffie: Despite admitting he is mentally much older, his body is still that of a young teenage boy. So sleeping next to two girls who are barely dressed still caused his body to act like one would expect.
• Renaissance Man: During his lifelong career as an assassin, Allen picked up a lot of random skills in order to create more effective cover identities, and all of those skills transferred over to his new life as Lugh. Most notably, he's a world-class chef with a thorough modern-day understanding of nutrition, familiar enough with the fields of chemistry and metallurgy to reverse-engineer them in a magically-powered form, and knowledgeable enough regarding cosmetic composition to "invent" moisturizing lotion without reference material in a world where such a thing had never been conceived.
• Screw Destiny: Though Lugh isn't enemies with the Goddess, he doesn't like the notion of having his life manipulated by a deity who has control over fate. The Goddess admits events like Tarte and Maha encountering Lugh were entirely her doing, but the girls falling in love with him was not.
• Secret Test: Lugh goes through one when his father assigns him his first target in the anime; a woman who was sentenced to death for murdering a couple, stealing their valuables, and setting their house on fire. The woman tearfully pleads for her life, making up excuses as his father read off her charges. When Lugh slices off one of her hands, the woman screams in pain and yells at his father for allegedly lying that she could earn her freedom if Lugh showed her mercy. She then starts angrily admitting to her crimes while showing no signs of remorse. Lugh then finishes her off, and at least gives her a quick death.
• Self-Fulfilling Prophecy:
  • Lugh realizes that if the Hero were to discover their closest comrades, the kingdom, and even the divine secretly conspired to eliminate the Hero after defeating the Demon King: that would be sufficient cause for the Hero to go on a world destroying murderous rampage. Lugh chides himself for not asking more details from the Goddess about why the Hero goes insane... especially when she's the Goddess of Fate.
  • Another scenario Lugh considers after witnessing the incredible power from a low ranking demon, is if everyone else in the party except the Hero dies battling the Demon King. He wonders if Survivor Guilt initiates the Start of Darkness.
• Sole Survivor: Of the "external factors" the Goddess reincarnated from Earth in the light novel.
• Spontaneous Weapon Creation: He invents spells to create guns and knives.
• Supreme Chef: Earth culinary arts significantly exceeds that of the New World, in large part because the New World did not experiment with plant sampling and crop diversity like Earth did. Because Allen took gourmet cooking lessons for a long term assassination assignment, as Lugh, he possesses cooking and farming skills well beyond anyone's imagination.
• Technology Uplift: Revolutionizes the cosmetics industry in the new world by introducing the concept of moisturizing lotion. He also "invents" firearms in conjunction with Dia, but has no plans to share that particular technological development outside his inner circle.
• Wise Beyond Their Years: Justified through reincarnation.
• Would Hit a Girl: Cian tested him with a woman tied up in the Tuatha Dé castle basement who was arrested and convicted of various crimes, including theft, arson and murder. Lugh didn't hesitate to cut her hand off before killing her after the woman threatened to kill him and conveniently confessed to her crimes while in pain from her hand being cut off.

Cian

Cian Tuatha Dé

Voiced by: Toshiyuki Morikawa (Japanese), Kyle Hebert (English)

Lugh's father and current head of house Tuatha Dé. Besides overseeing his son's training and carrying out assassination for the kingdom, his public persona is that of a renowned physician.

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• Action Dad: The current head of the Tuatha Dé family who trains Lugh as an assassin.
• Batman Gambit: He has a talent for predicting how others will react to a situation, then making plans to take advantage of such events.
• Crazy-Prepared: Has multiple identities set up ahead of time for Lugh and Dia.
• Genre Savvy: He is aware the kingdom would abandon the Tuatha Dé if their Murder, Inc. purpose becomes compromised. Though he remains loyal to the kingdom so long as they remain faithful to his family, he has setup various Secret Identity plans in case they are sacrificed by the royal family.
• Hero of Another Story: His time growing up and doing the family business of being an assassin.
• Hitman with a Heart: Specifically raises Lugh to be this, since they're people, not tools, and you need emotions and empathy to understand other people. As he says, "humanity is essential for assassination".
• Mandatory Unretirement: He returns to the frontline for especially important assassinations the royal family requests. This begins to stop once Lugh comes of age.
• Mundane Utility: He possesses enough medical knowledge to be a doctor. He learned how to heal people and conversely, how to also kill them.
• Quest Giver: He assigns assassin missions to Lugh and other prominent assassins in the family.
• Reasonable Authority Figure: Trains Lugh up to be an assassin, but also allows him to learn other things as well, such as how to become a successful merchant. After Lugh returns from being Illig Balor, he asks Lugh if he wants to just be a businessman rather than an assassin. When Lugh says he wants to be an assassin and lists off reasons why, such as wanting to marry Dia Viekone, and could only do that as a nobleman and not as a merchant, his father allows him to choose the path.
• Retired Badass: After Lugh takes over big target assassinations, he permanently retires to spend more time with Esri, which results in Lugh having a little sister.

Esri

Esri Tuatha Dé

Voiced by: Chiaki Takahashi

Lugh's mother and Cians wife. She is rather happy-go-lucky and dotes greatly on her son, much to the latter's chagrin.

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• Affection-Hating Kid: She laments Lugh transforming into one.
• Amazingly Embarrassing Parents: Lugh's mother has a personality that hovers between Manic Pixie Dream Girl and Cloud Cuckoolander. She smothers her son with loving attention that occasionally goes a bit overboard. However she never means anything ill-minded, so Lugh tries to tolerate her fun whenever possible.
• Beware the Silly Ones: Though she has yet to demonstrate her abilities, she is trained in Tuatha Dé self-defense techniques and from a strong mana bloodline.
• Crocodile Tears: Uses them on Lugh to guilt trip him into doing what she wants.
• Genki Girl: Incredibly carefree and fun loving.
• Helicopter Parents: She has a massive son complex and wants to know everything about Lugh, including physical development and embarrassing moments.
• I Want Grandkids: She wants Lugh to have grandkids at age 16 because, "she is not getting younger." It also does not help that Esri had her first child when she was around 16 years old.
• The Pollyanna: The wife and mother of the two deadliest assassins in the world. Lost her firstborn daughter to the assassination trade. Is aware of the corruption and evil that exists within the kingdom's nobility which require assassins to keep controlled. Remains the greatest source of sunshine within the Tuatha Dé.
• Shipper on Deck: Esri pairs him with any cute girl who catches his fancy, but she especially holds the candle for Tarte.
• Stay in the Kitchen: Inverted. Lugh actually tells her to leave the cooking to him so he can control the nutritional value of their meals and his own personal young growth.
• Waif-Fu: She was taught the secret Tuatha Dé fighting techniques used by family womenfolk after her engagement and marriage to Cian. The same style is taught to Tarte after she is engaged to Lugh.

Ruff

Ruff Tuatha Dé

Cian and Esri's first child and Lugh's elder sister, who passed away before he was born.

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• Dark Secret: The details about her death are not spoken about. Cian says little about it. The Goddess also stays silent on the matter.
• Death by Origin Story: Lugh's deceased older sister. She died a few months before Lugh was born.
• The Greatest Story Never Told: Presumably she died on an assignment.
• My Greatest Failure: Her death weighs heavily on Cian, and he swears to Esri the same fate will not happen to Lugh.
• Professional Killer: She was trained to be an assassin like her father and little brother.
• Who Names Their Kid "Dude"?: You are forgiven if you didn't realize Ruff was a girl from just reading her name without more information.

Ronah

Ronah

A member of a branch-family of house Tuatha Dé who would have been next in line for the position of head of the house, had it not been for Lugh.

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• Challenging the Chief: Issues a challenge to Lugh for the right to become the next head to the House of Tuatha Dé.
• Curb-Stomp Battle: Lugh defeats him with practically zero effort.
• Depending on the Artist: His character design is drastically different between mediums. In the manga, he has beady eyes, neatly styled hair with an undercut, curved nose, and looks rather distinct from the House of Tuatha Dé. In the anime, he has a much stronger resemblance to his cousin Lugh, having normal eyes, a full head of messy hair, a straighter nose, and looks like he could pass for a direct member of the House of Tuatha Dé.
• The Dragon: Though eventually downplayed, Lugh offers him the opportunity to become his enforcer for public affairs involving the Tuatha Dé, as Lugh is supposed to keep his true profession a secret, and to avert Ronah from becoming The Starscream.
• Graceful Loser: After Lugh smooths over their differences, he accepts a Covert Group with Mundane Front position, serving as a knight for the Tuatha Dé in public.
• Knight in Shining Armor: He would rather be an honorable knight than a secret assassin. After smoothing things over with Lugh, he is given the opportunity to represent the family as a knight. Lugh even secretly considers he might become a Black Knight with the proper guidance.
• Overshadowed by Awesome: Though he lost to Lugh, Ronah isn't a weakling. He once participated in the kingdom's knight tournament and won fifth place despite the Tuatha Dé not being a family of battlefield warriors. Lugh suspects Ronah could become stronger if allowed to develop skills as a knight instead of an assassin.
• Passed-Over Promotion: He would have been the head of the Tuatha Dé family if Lugh was never born.
• Pride Before a Fall: Soon as he's introduced, after declaring his status and strength, he gets his ass handed to him by Lugh.
• Took a Level in Cheerfulness: In the manga, he shows up later as a full fledged knight with a much brighter personality. He loses a duel to Tarte and laughed off the defeat as a great opportunity to spar with the Lightning Valkyrie.

Lugh's Assassination Squad

In General

• Action Girl: All three girls are capable of putting up a fight if needed.
• Balanced Harem: The trio has come to an agreement that Dia will be Lugh's wife, with Tarte and Maha as his official mistresses.
• Battle Harem: Each of them provide an area of expertise as assassination force multipliers. Dia is the magic powerhouse, Tarte provides martial strength, while Maha is the stealth and logistics.
• Beauty, Brains, and Brawn: Dia provides the brains. Tarte brings the brawn. Maha leverages the beauty.
• Brainwashing for the Greater Good: Lugh has used various degrees of psychological conditioning on each of them to ensure Undying Loyalty to him. However he seeks to redeem this by reciprocating their feelings and become the savior they've fallen in love with.
• Brother–Sister Incest: Both Dia and Maha are in love with Lugh despite the fact he is their brother, at least on paper. Dia is his older cousin, while Maha is his adoptive sister who regularly refers to him as "big brother".
• Fighter, Mage, Thief: Tarte is the Fighter. Dia is the Mage. Maha is the Thief.
• Linear Warriors, Quadratic Wizards: All three are capable of casting magic, with Dia being the greatest among them. Lugh notes to himself that the opportunity to assemble three sorceresses into one team should have been statistically improbable, and therefore he is aware the goddess had a hand in that.
• Mage Marksman: They are all firearm experts. Dia is able to produce automatic fire, Tarte carries a Hand Cannon, and Maha is the riflewoman.
• Not Blood Siblings: Maha is the adopted sister of Illig, Lugh's cover identy as a merchant. Later on, after the fall of the House of Viekone, Dia is given a new identity as Lugh's sister "Claudia" by faking her birth into the Tuatha Dé family registry.
• Rescue Romance: Each of them was saved by Lugh from death or a life of enslavement.
• The Three Faces of Eve: From a personality standpoint: Dia is the intellectual wife, Tarte is the childlike idealist, and Maha is the streetwise seductress. If observing the trio from a distance: Dia looks the most childlike, Tarte attends to Lugh like a wife, and Maha teases him seductively.
• Undying Loyalty: Each are entirely devoted to Lugh and would readily die for him due to him rescuing them during their time of need, and treating them with respect.
• Unequal Pairing: All three girls' relationships with Lugh are this to some extent. Dia, Maha, and Tarte all owe Lugh their lives, and while Dia is at least his social equal as a fellow aristocrat and later an adopted member of House Tuatha Dé, Maha is part of the merchant class (in as much as she has an official identity at all), and Tarte is explicitly his servant. Lugh's awareness of this power imbalance may contribute to his reluctance to pursue Relationship Upgrades with the members of his harem — much to their chagrin.
• Unwanted Harem: Lugh is only interested in Dia largely due to her ability to help him create new spells which would be convenient for him to develop new methods of assassinations. Despite that, both Tarte and Maha have romantic feelings for him. Tarte is more subdued in expressing them, but Maha clearly tells him plain as day that she wants to be his lover.
• What If?: With the Akashic Records the Goddess reveals had she not altered the girls' destinies to encounter Lugh, each would have suffered a terrible fate. Tarte collapses from malnutrition and slowly freezes to death before reaching the Tuatha Dé barony. In the case of Dia, the attack on and collapse of House Viekone occurs earlier. After capture, Dia would become a Breeding Slave for her magic bloodline. Maha is auctioned off as a sex slave as her sellers planned. The intended owner was abusive and inflicts fatal physical injuries after growing bored of her.

Dia Viekone

Dia Viekone

Voiced by: Reina Ueda (Japanese), Caitlin Glass (English)

A magical Child Prodigy who is hired by Lugh's parents to be his magic instructor. Keeping in contact afterwards, she later becomes a member of his squad.

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• A-Cup Angst: She is clearly jealous of Tarte's impressive bust.
• The Archmage: She is one of the most powerful spellcasters in the world. Though Lugh possesses greater raw potential, she outshines him in technique and research, proving this time and time again by expanding his previous life knowledge into new ideas.
• Big Little Sister: Inverted. Despite being three years older than Lugh and demanding to be called "big sister" by him, she is the shortest member of the Battle Harem.
• Child Prodigy: She was ranked among the greatest magicians in the world before the age of 10. Though only able to cast fire and earth spells, she understands the principals for all six forms of magic and able to teach others how cast spells she cannot. This was a factor for choosing her to become Lugh's magic instructor, even though both were still children.
• Dishing Out Dirt: She has an affinity for the earth element. The category also includes magic involving (or creating) gemstones and metals.
• Faking the Dead: Lugh is told by his father to assassinate Dia. When he inquires who was offering the mission, he's told it was Dia's father. In reality, Lugh was to rescue her, then have her "suffer" a Despair Event Horizon and set fire to her room in full view of all of her soldiers, along with the ones attacking them. A wrench is thrown in the works when Setanta shows up and launches a massive attack that easily destroys the castle walls.
• Geeky Turn-On: Her initial reason for falling in love with Lugh. Dia loves magic theory more than the application of magic. She already knows she will become the greatest mage in the world and finds magic not challenging enough. Therefore Dia's dream is to unlock the foundation of magic itself, the sorcerous equivalent of subatomic and quantum properties, so she can invent magic that has never existed before. Thanks to Lugh's special skills (and insight from Earth), she discovers a method to make that possible.
• Kissing Cousins: She is from Esri's side of the family, making her related to Lugh.
• Mage Marksman: Dia is unable to magically enhance her body to the extent Tarte and Maha can. To supplement her magic on the battlefield, she uses sorcerous firearms that focus on accuracy and More Dakka.
• The Napoleon: As her closest companions, Lugh, Tarte, and Maha know better than to bring it up... but Dia is self-conscious about her petite stature to anyone stupid enough to point it out.
• Older Than They Look: Though three years older than Lugh, she looks at least three years younger than him. She later discovers she possesses a D-rank skill that provides resistance to Rapid Aging magic. However it has the side effect of stunting physical growth.
• Overshadowed by Awesome: Dia's initial reaction when measuring Lugh's magical abilities with the magic stone. She's also shocked that he has an affinity with four of the six magical elements.
• Playing with Fire: She has an affinity for the fire element.
• Squishy Wizard: When it comes to magic, she is one of the best mages in the world. However, she is pretty weak physically and doesn't fare well in close quarter combat.
• Stepford Smiler: Before and during her date with Lugh in Episode 10, Dia is clearly putting on a carefree, cutesy front to distract Lugh from the civil war happening in her home kingdom and the threat it poses to House Viekone. The mask slips a couple of times during the episode, allowing Dia's underlying emotional turmoil to show through, and she drops it entirely after Lugh leaves.
• Technician Versus Performer: When it comes to magic, she is the Technician to Lugh's Performer. Though Lugh unquestionably devotes time to magic training, he does so leveraging the skills he received from the Goddess, rather than pure academic research. In addition he must further divide his attention to physical training and social interaction. Dia keeps herself buried in mana studies to the exclusion of almost everything else. She is able to maintain parity with the natural synergy Lugh enjoys from his unique skill combination, through methodical perfection of her magic specific skills.
• That Came Out Wrong: When Dia prepares for Lugh's Elemental Conversion, she unbuttons his shirt while stating to give him the most wonderful first experience. Only to then become a flustered mess and state "BUT NOT IN A WEIRD WAY!"

Tarte

Tarte

Voiced by: Yūki Takada (Japanese), Courtney Lin (English)

A starving, outcast peasant girl from a neighboring county who Lugh meets while hunting. Recognising her potential with mana, Lugh takes her in as a maid and trains her as a assassin.

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• Aren't You Going to Ravish Me?: Played for drama. Because Lugh doesn't request her to sleep with him, she doubts that she is able to truly serve him or know his true feelings.
• Buxom Beauty Standard: Has the largest bust size of Lugh's Battle Harem. Esri even likes putting her in outfits that emphasize her breasts and Dia is quite jealous of them.
• Clark Kenting: In the anime adaptation. The only difference between Tarte the loyal personal maid of Lugh Tuatha Dé, and Tarte the loyal personal maid of Illig Balor, is the later wears cherry ornaments (instead of four leaf clovers) and dark clothes (instead of bright clothes). No one notices the identical Hair of Gold, Heart of Gold hairstyle, mystic green eyes, and huge breasts.
• Clingy Jealous Girl: When Esri talks to Lugh about meeting young noble women for an arranged marriage, Tarte pouts and seems upset by it. She seems relieved when he shoots the idea down. Maha also later mentions that Tarte was usually in tears every time Lugh went to visit a brothel.
• Contrived Coincidence: Lugh was trying to find an assistant that could use mana, however that was very rare for a commoner, as well as one that he could get to be completely dependent on him. All of a sudden he comes across her who fits all of his requirements. She mentions that she had a dream where the Goddess told her she would have a faithful encounter, causing him to suspect that the Goddess set this up.
  • Also Lampshaded in-story – Cian is likewise suspicious of such "convenient" timing, wondering if Tarte had been sent to spy on them. Luckily, Lugh is able to quickly dissuade him of this.
• Fanservice Pack: When she first met Lugh, she was frail, thin, and dangerously malnourished. Two years later and she has a body that many a noble has noticed despite only being 14.
• Flash Step: She can move across a battlefield in the blink of an eye.
• Four-Leaf Clover: She wears them for ornamentation. Also when she casts magic or uses firearms her Instant Runes take the shape of one.
• Freudian Slip: Accidently agrees to bear Lugh's children when trying to convince Esri that he was too young to sire grandchildren from arranged marriages.
• Girlish Pigtails: Her default hairstyle.
• Good Morning, Crono: Lugh tends to sleep in because he spends each night physically training or practicing magic, so it becomes her enjoyed task to rouse him from bed each morning, threatening to do kinky things to him if he doesn't wake up.
• Hypocritical Humor: Argues that it's still too early for 16 year-old Lugh to marry and have children, but if it's with her, then maybe it's not too early...
• Little Bit Beastly: Acquires the Beastification skill. In addition to magnified combat abilities, this causes her to grow fox ears and a tail.
• Living Aphrodisiac: When using the Beastification skill, she emits pheromones that make her irresistible to men.
• Mage Born of Muggles: The vast majority of mages are nobles and magic ability is typically inherited. Tarte was born among starving peasants.
• Magic Knight: She is gifted in wind magic, which she uses as thrust and to negate air resistance.
• Parental Abandonment: She was starved and then thrown out by her family and left to fend for herself to due to being too young to contribute in any way making her "useless". This of course has had a severe psychological effect on Tarte that Lugh exploited ensuring her Undying Loyalty to him. Although, it is implied she would do whatever he asked, and we mean "whatever", so as to not be abandoned again, even without his manipulation.
• Please, Don't Leave Me: She is utterly terrified of not being able to help Lugh, in the fear that he will abandon her if she is a burden. Justified by the fact that she was abandoned and left to die by her family, and would have perished in the woods were it not for Lugh rescuing her.
• Red Baron: "Lightning Valkyrie", though Tarte thinks it's an Embarrassing Nickname.
• Retractable Weapon: Tarte's weapon is a long spear that folds up and is kept on a secret pouch on her leg.
• Revolvers Are Just Better: In the event she needs to get into a firefight, she a revolver in a leg strap that is a dead ringer for the Webley-Fosbery autorevolver.
• Shock and Awe: Gains the ability to generate and control lightning.
• Superpower Lottery: She was born with superior physical stats, the Spear Expert skill, Wind element affinity, and inherent talent with Lightning spells. Her peasant birth kept these abilities dormant and undiscovered until the Goddess guided her to Lugh.
• Super-Reflexes: She dodges or deflects attack so fast, her eyes can't even keep up with her own movements. Lugh fixes this weakness by giving her the same surgery that provides him superhuman sight.
• Too Kinky to Torture: She is as cheerful as can be when Lugh tells her he is going to put her through harsh training.
• Undying Loyalty: She is fully aware that she should have died that day and sees every day after only possible thanks to Lugh saving her. Because of this she is fully intent on helping Lugh accomplish his missions even if she has to die for it to happen.

Maha

Maha Balor

Voiced by: Shino Shimoji (Japanese), Hayden Bishop (English)

The orphaned dauther of a rich merchant from Milteu. After working as a city guide alongside other urchins, she was kidnapped alongside her friends and sent to an Orphanage of Fear, before being rescued and taken in by Lugh/Illig, eventually being adopted into the Balor family.

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• Adaptation Expansion: The anime expands early on Maha's Backstory before Lugh saves her, whereas the light novel simply explains he bribed an orphanage's director to have her adopted by his cover identity's father after deeming her mana levels and psychological profile suitable to make her reliable subordinate.
• The Artful Dodger: In the anime, Maha is introduced as the de facto leader of a group of homeless girls despite being one of the youngest. Notably, she comes up with a reliable way to make money by guiding tourists and newcomers to Milteu based on their knowledge of the port city and her people skills after procuring two sets of uniforms to make the whole thing look above board.
• The Baroness: She presents herself as one, though she immediately becomes embarrassed whenever Lugh actually returns her advances.
• Benevolent Boss: While running the business of showing tourists around town and getting a small referral fee from the business, she's shown to care deeply for the other girls, even trying to buy them time to escape from some thugs who ended up kidnapping them. Later, after Lugh rescues her and starts up a beauty supply store, she hires all of the girls to help her run the Orna business.
• Ceiling Cling: Because she's so nimble and flexible, this is a specialty of hers.
• Cleanup Crew: On the rare occasions Lugh can't tie-up loose strings, Maha wraps them up for him.
• The Confidant: Though Lugh trusts Dia and Tarte, the two have an innocent outlook on life. Maha has led a harsher past and is more aware on the worst of humanity. Therefore she is the assistant he keeps informed on the crueler aspects of assassination.
• Covert Group with Mundane Front: She is put in charge of the business Orna, that Lugh sets up while under the guise of Illig Balor, which sells women's beauty supplies. She also uses this opportunity to collect intel for Lugh on assassination targets.
• Exalted Torturer: She handles interrogations when Lugh is away.
• Knowledge Broker: Amasses an impressive social network with contacts in businesses, noble houses, and orphanages.
• Lima Syndrome: Invoked. Had Lugh never met Maha, she would have been bought right off her Orphanage of Fear by a wealthy pedophile, but managed to manipulate her way into his good graces to the point that, a few years down the line, she would have had him wrapped around her finger and effectively be running his businesses for him. This unrealized timeline, however, would have resulted in her early death just like in Dia and Tarte's cases, when the pedophile's jealous wife arranged for Maha to meet a gruesome end at the hands of bandits.
• Mama Bear: She deeply loves her friends and if you are a scumbag, especially pedophilic rapists, that wants to harm them, expect your throat to be slit.
• Meaningful Name: Maha means "Beautiful Eyes" in Arabic.
• Number Two: Oversees Lugh's mercantile business, intelligence gathering network, and counterintelligence operations.
• Orphan's Ordeal: Her father was killed by his traitorous right-hand man, she was sent to an orphanage and was almost sold as a Sex Slave.
• Red Herring: When she can't hide evidence of a hitjob, she's an expert at redirecting who gets the blame.
• Riches to Rags: Maha was the daughter of a wealthy merchant whose treacherous right-hand man killed him in order to take control of his business empire, and in the process of fleeing for her life, Maha was reduced to a penniless orphan living on the streets. Part of her plans for expanding Orna involve reclaiming elements of her family's old business that have fallen on hard times through mismanagement.
• The Scrounger: She is Lugh's Friend in the Black Market, gathering whatever mission resources he requires without raising suspicion.
• Stealth Expert: She is the stealthiest of all Lugh's assistants and can perform feats of silence others require magic to duplicate.
• Target Spotter: When on the battlefield she provides targeting coordinates and strike confirmation for Lugh.
• The Tease: She loves to do this to Lugh, and after discovering his Nocturnal Emission one morning, says she could be both his sister and his lover. She doesn't hold back too much, nor does she hide her desire to be his lover.
• Unperson: Public records about her were few because she was an orphan. What little information remained was further erased by the Black Market to auction her off as a slave. Then Lugh purged whatever the criminals couldn't. The only material evidence she exists, is her being alive. This grants massive advantages for infiltration as no strings ever connect back to her.

Royal Knights Academy

Epona Rhiannon

• Apocalypse How: Destined to cause Planetary Societal Collapse.
• Beware the Nice Ones: Timid and uncertain everywhere except on the battlefield.
• Book Dumb: Didn't have much opportunity for studying before entering the Academy and asks Lugh for help in this area.
• Does Not Know His Own Strength: Because the Hero constantly gains strength with each passing moment, previous limits are always being surpassed. However the Goddess states a gradual De-power would occur if the Hero uses their powers more often.
• Drunk with Power: The reason the goddess wants the assassin to kill the hero after said hero kills the demon lord, stating that said hero will go mad and destroy the world.
• Godzilla Threshold: After the Hero defeats the Demon King, the Hero becomes this for the Goddess. She is willing to use any means available to her and make deals with any faction, to remove the Hero permanently.
• I Am Not Left-Handed: Literally—Epona fights with just the left hand as a Self-Imposed Challenge.
• I Cannot Self-Terminate: The hero make Lugh promise to kill her if her Unstoppable Rage reaches a point of no return. He naturally accepts.
• Impoverished Patrician: The Hero is from a very poor Barony, and had to work as a farm hand every day on his land.
• It Only Works Once: The hero can immediately formulate a defensive measure against any attack seen or experienced.
• Kill the Ones You Love: The Hero killed the woman she considered a mentor and surrogate Cool Big Sis after going into an Unstoppable Rage.
• Last Episode, New Character: In the anime, she shows up in The Stinger after the credits for episode 12 is finished. Lugh is made aware of the hero's presence by his father.
• Nigh-Invulnerability: Lugh doubts anything less than several direct nuclear weapon strikes could kill the hero.
• Not Even Human: The demons claim none of the heroes who are born to slay the Demon King are actually human to begin with. These same demons even go so far to say the hero has more in common with a demon than a human.
• Outside-Context Problem: Lugh's desired solution is to save the Hero without killing them. Part of that plan is to avoid triggering the event that cause the Hero to go into an Unstoppable Rage, which includes minimizing the Hero's presence on the battlefield. The Hero's power is supposed to be exhaustible and Lugh's activities that prevent depletion of the Hero's power is a problem the Goddess must adjust her murder plans to contend with.
• Power Copying: The hero can mimic another person's magic spell or combat skill after seeing it once, and when doing so, increases the output by an order of magnitude.
• Rage Breaking Point: The cheerful person on the outside contains a violent person on the inside.
• Samus Is a Girl: The hero is actually a heroine.
• Stepford Smiler: Does Not Know His Own Strength and has committed several terrible mistakes in the past. Tries to maintain an upbeat personality to make up for those accidents.
• Sweet Polly Oliver: Epona is registered as and dresses as a boy due to the country she was born in only allowing boys to aid in the work of noble families and the barony she was born in was so poor off that they needed literally every hand they could get to help with their failing farm.
• Unskilled, but Strong: Lacks any fighting technique or training, but is so freakishly fast and strong that Lugh is still taken to his limit even in a sparring match.
• Unstoppable Rage: One of the hero's skills is Berserker. The more the hero fights, the more violent the hero becomes... and it is possible to reach a point where the hero can never turn back from being a mindless killing machine.
• Woobie, Destroyer of Worlds: Lugh ultimately judges that Epona is not an evil person and was likely forced by her circumstances - a royal family and nobility that would see her as a threat to their standing after she dealt with the Demon King, an endless number of warriors jealous of her power and skills like "Berserk" that drove her towards greater violence and brutality - to become the slaughterer that destroyed the world, rather than For the Evulz or anything like that. In fact, Epona even eventually asks Lugh to kill her if she ever loses control of herself. As such, Lugh decides to try and remove the circumstances that will lead her to lose control rather than fulfill his contract with the goddess to assassinate her.
• Worthy Opponent: Admires Lugh for being the only person to actually present a challenge to her and not have his mentality "break" after seeing her incredible abilities.

Naoise Gephis

• Blue Blood: He is heir apparent for one of the four Duke Houses who provide candidates for the kingdom's throne.
• Casanova Wannabe: He flirts on Tarte and Epona without success.
• Decadent Court: He believes the kingdom's corruption includes the other Duke Houses.
• Divine Right of Kings: Claims the best kings are those chosen by divine providence of the Goddess.
• Heroes Prefer Swords: Master of the royal style of swordsmanship.
• It's All About Me: Thinks very highly of himself as a self appointed The Chosen One to save the kingdom.
• Linear Warriors, Quadratic Wizards: Defeated the vice captain of the kingdom's knights by having greater magic ability.
• Magic Knight: Uses magic to bolster his physical strength and endurance.
• Prince Charming: Portrays himself as one in public, wearing white while riding a white horse.
• We Can Rule Together: Seemingly a non-villainous example. He makes overtures to Lugh, Nevan, and Epona to aid him in remaking the kingdom into a utopia.

Nevan Romanlung

• Blue Blood: She is the heir apparent to one of the four Duke Houses who provide candidates for the kingdom's throne.
• Darwinist Desire: Her main interest in Lugh is bearing his child. She's less interested in joining his harem, and more interested in having a one night romp.
• Light 'em Up: Has affinity with Light magic.
• The Man Behind the Man: House Romanlung is more powerful than the royal family and pulls all the real strings in the kingdom. On paper House Tuatha Dé is a junior branch to them, though in practice only answer to the monarchy. Yet she still commands Lugh to assassinate the Prince, and later to assassinate the Pope.
• Red Baron: Shining Princess, due to her talent with Light magic.
• Strong Family Resemblance: She looks almost exactly like her cousin Princess Farina. The only difference is that Princess Farinas has the trademark pink hair of the royal family. This is because they are actually twin sisters conceived through an affair between Duke Romanlung and the then Royal Princess. Lugh figured this out because his Magical Eyes showed him that the "cousins" have near identical mana signatures.
• Superior Successor: She is the result of selective breeding among the noble families. Seeks to have a child from Lugh because of his superior genetics and skills.
• Übermensch: The product of an ideology that superior genetics results in a superior person not beholden to the same rules and limitations as ordinary people. Her behavior seems erratic to others because she makes little attempt to conform with societal norms that limit her potential.
• Women Prefer Strong Men: Took greater interest in Lugh after seeing him defeat the Hero in sparing matches and win battles against demons.
• World's Most Beautiful Woman: Said to have the highest standard of beauty possible for a human and only the Goddess could appear more attractive.

Demon Kingdom

The Demon King

• Always Second Best: The Demon King is the second most powerful being in the world, as the hero is destined to slay them.
• Greater-Scope Villain: The reason the Hero even exists and why Lugh can't assassinate the Hero immediately.
• Kryptonite Factor: Only the Hero can harm the Demon King. It is invincible to everyone else.
• Merger of Souls: Or rather a Merger of Demons. When the birth of the Demon King occurs, all demons merge into it as a single entity. This results in the Death of Personality for all Demons because the new persona has its own intellect and goals.
• Resurrective Immortality: The Demon King returns through a summon ritual.
• Vagueness Is Coming: The ultimate moment of truth is the "Day of Destiny" when the Demon King returns. This is the event that determines if the Hero or the Demon King becomes triumphant in their final battle. Yet the Goddess also considers this to be the real deciding factor if Lugh can kill Epona or not, and what she does afterwards in the event of his success or failure at that task.

Gurt

• Dumb Muscle: Meena considered him the least intelligent of the Eight Demons.
• Insectoid Aliens: Described as a giant humanoid shape Rhinoceros Beetle.
• Rhino Rampage: Is a demon known for brute strength and savage ferocity. Charges and smashes without putting much thought into his actions.
• The Worf Effect: One of the Eight Demons: elite rulers who are second only to the Demon King in might. He is slain to reveal Lugh has successfully invented a method that can permanently kill demons without using the Hero's power.

Meena

• Affably Evil: Unlike other demons she's willing to negotiate terms and honor ceasefires. However it is very clear she only does this because she has a much bigger agenda and Lugh is fulfilling those plans.
• Ambiguously Brown: She has dusky skin.
• Aristocrats Are Evil: She absolutely believes in this ideology and hides among humanity as Countess Granfelt.
• Decadent Court: She has tremendous influence within the kingdom's nobility as Countess Granfelt.
• Demon Lords and Archdevils: She is one of the Eight Demons.
• Intrigued by Humanity: She doesn't have a genocidal hatred for humans like other demons and enjoys social interaction with them. While Meena manipulates and disposes human pawns, she prefers seduction and negotiation over pure violence. An environment of Machiavellian politics as practiced by the noble class is fun to her.
• Klingon Promotion: Demon society allows for such activity... including the position of Demon King. However becoming the Demon King is a Merger of Souls that results in Death of Personality. She is working towards solutions that would give her the immense power of becoming the Demon King, but without losing herself in the process.
• Living Aphrodisiac: She emits pheromones that cause humans of both sex to find her irresistible. It grows to greater intensity when she's in her demonic form.
• Master Poisoner: Perhaps even a Poisonous Person. Her toxins are so lethal even Lugh's Acquired Poison Immunity is almost overwhelmed.
• Snake People: Her true form is something similar to a Naga or Lamia.
• Snakes Are Sexy: She is an incredibly attractive woman.
• Snakes Are Sinister: Her familiars and summons are snakes or have a snake theme to them.
• The Starscream: Unlike other demons she does not want the Demon King to be revived. This is because she values her own individuality. Meena knows that even if she "wins" over the rival demons and becomes the basis of the new Demon King, merging with the other demons' souls would lead to a Death of Personality for her.
• Super-Empowering: She can augment another creature's abilities and in some cases grant them new powers. This includes humans.
• Xanatos Gambit: Lugh's victories appear to further her ultimate goal, no matter if he wins or loses the battles. He kills a demon? It gets rid of a demon rival. A demon kills him? It gets rid of a human threat. He kills a mole? Another gets promoted elsewhere. The mole stays alive? She doesn't have to replace them.

Riogel

• Battle Harem: Often accompanied by a squad of attractive demons.
• Red Baron: He is known as the Beast Lord.

Church of the Goddess

The Goddess Venus

Voiced by: Yukari Tamura (Japanese), Veronica Taylor (English)

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• All-Powerful Bystander: If she were allowed to solve all the world's problems directly, she would. However she has rules and superiors to obey.
• Big Eater: In the manga she's constantly consuming snacks and drinks. Bonus artwork often depicts her holding food or being near a bowl of fruit.
• Character Catchphrase: "I am a Goddess. Ahem!"
• Didn't Think This Through: One of her reincarnates is a rapper who she sent to beat the hero with Battle Rapping, only for her later to realize that the poor bastard has a become a Nervous Wreck because in a world without the concept of rap, he's just insulting people.
• The Dragon: Unbeknownst to the world or her worshippers, the Goddess serves an even more powerful entity who presumably oversees the entire Universe.
• Emotionless Girl: When she isn't pretending to be nice around mortals, she acts like an emotionless machine. The Goddess is even described as a "doll" or a "vessel" when she reverts to her true behavior.
• Entertainingly Wrong: Due to her not understanding emotion, she believes her Psychotic Smirk and Face of a Thug are soothing expressions that put humans at ease.
• Exact Words:
  • "I want to save the world." That does not necessarily include the majority of humanity or demons, since both repeatedly endanger it.
  • When Allen asks if the Goddess has other reincarnates, she responds that he is, "the only reincarnate for now." In the light novel Allen was the first reincarnate but the Goddess reveals a Plan B after Lugh's battle with Setanta Mac Nessa. This is because she exhausted the amount of fate manipulation she was authorized to use on Lugh up to that point, but that limit was per option. The anime drops this for a Running Gag about the Goddess' disappointment with previous reincarnates. However in episode 11 the Goddess informs The Omnipotent she has found her champion (Allen) and suddenly terminates support of all reincarnates prior to him, alluding they've all died or will die at that point. The opening to episode 12 continues that same scene, where she witnesses Allen die on Earth. Thus Allen was indeed, "the only reincarnate for now," when his deal with the Goddess occurred.
• Face of a Thug: Though still very attractive, the manga depicts her with a perpetual Psychotic Smirk and a gaze that hovers between Disapproving Look and Death Glare.
• The Fake Cutie: The reason she acts strange and has weird mannerisms is because she is an entity that does not understand humans and tries to mimic them. She is not evil in the traditional sense, because self serving ideas are mortal concepts she does not comprehend.
• A Form You Are Comfortable With: Though she always appears as a beautiful albino woman, her exact attire and personality varies from person to person.
• Gold and White Are Divine: More emphasis on the white than gold.
• Grand Theft Me: She can possess bodies to interact with mortals or deliver messages.
• Holding Back the Phlebotinum: Two factors keep the Goddess' hand tied from fixing the world. The first is an Obstructive Code of Conduct that prevents her from directly intervening without approval from a higher authority. The second is maintaining "resources" for Vagueness Is Coming reasons. She is waiting for an unrevealed event and carefully rations the amount of Fate magic she uses to aid assets like Lugh and the Demons. In addition, if she meddles too much with mortal destinies, it becomes harder for her Tomes of Prophecy and Fate to accurately predict the outcomes.
• Ironic Name: She has the name of the Roman goddess of love, but doesn't fathom even the concept of it.
• Lighter and Softer: In the light novel and manga she acts with a Batman Gambit methodology, using her divination to manipulate dozens of lives to steer Lugh towards an All According to Plan scenario. In the anime she has a Black Comedy Try Everything approach that results in Didn't See That Coming and Didn't Think This Through outcomes.
• Little Miss Almighty: She takes the form of a young woman in her late teens or early twenties.
• Logical Weakness: She is the Goddess of Fate. Therefore she cannot foretell what happens to a person if they circumvent their preordained destinies. For example if someone was supposed to die at 8 years old, but cheats fate and survives instead, the Goddess can no longer predict that person's future. She is completely unable to foresee the future of individuals "imported" from another world, such as Lugh. In the light novel this is one reason why she is loath to reincarnate multiple souls to kill the Hero. For such individuals she is forced to use Prescience by Analysis and Batman Gambit strategies to get desired outcomes. Ironically she needs such people to kill the Hero because they will change the future she has already foreseen.
• Mook Depletion: She has lost hundreds of reincarnates in the anime because of Too Dumb to Live reasons. In the light novel she mentions three out of four reincarnates were dead: Fallan Forteil, Deique Grouline, and Nacha Coradorph. This left Lugh Tuatha Dé as the Sole Survivor of the "external factors" she summoned to the world.
• Murder Is the Best Solution: Despite Lugh's attempts to Take a Third Option with the Hero's future, the Goddess remains adamant the Hero needs to die.
• Mystical White Hair: Her skin, eyes, and hair are described to be white as snow in the light novel.
• Obstructive Code of Conduct: The Goddess has strict rules she must obey when it concerns using her powers in mortal affairs. She's figured out ways to bend those rules slightly to get what she wants, but cannot outright break them without angering her superior.
• Pals with Jesus: The Goddess invests a lot of time and resources on Lugh, manipulating fate in his favor on several occasions. Due to her divine origin and lack of humanity, undertones of Did We Just Have Tea with Cthulhu? often creeps in. Though she has several secret agendas, the Goddess displays genuine hope that Lugh succeeds in killing the hero.
• Playing Both Sides: She is working with the demons to kill the Hero. Mutual annihilation would conveniently solve both problems.
• Prescience by Analysis: She uses odds and statistics to calculate the probability of what event will occur next.
• Psychotic Smirk: Appears to be her default expression.
• Reality Warper: She's able to pull souls from other worlds, conjure objects from nothing, erase memories, and reincarnate mortals with incredible powers. However she is not The Omnipotent, as there is a greater entity who prevents her from directly interfering in mortal affairs without permission.
• Stock Gods: She is a goddess of fate. She also serves a superior deity who she must petition for more permission to intervene in mortal affairs. Lugh's growing chances to save the world and kill the Hero result in her gaining more divine authority to act of her own accord.
• Tall Poppy Syndrome: Her whole game. If someone or something appears to be the strongest in the world, she reincarnates someone else to deal with it.
• Time for Plan B: The Goddess says this word for word, revealing Lugh is not the only person she's designated to kill the hero. In the anime, flashbacks indicate she had hundreds of reincarnates across forty years of time. However in the light novel she explicitly states the other gods would notice her meddling with reincarnates, and Lugh was the only one at the time of his rebirth.
• Tomes of Prophecy and Fate: One of her divine possessions is a book that contains the destiny of each mortal born in the world. As a goddess of fate she can change that destiny, however the book becomes less accurate the more divine intervention is used.
• Try Everything: In the anime. Due to her detachment from understanding humans and desperation to find someone who can kill the hero, she even reincarnates the world's best diss rapper because his hip-hop was brutal enough to cause those he insulted to commit suicide in shame. Doesn't turn out well in a fantasy world, as one can imagine.
• Utopia Justifies the Means: In truth the Goddess doesn't care about the affairs between Humans and Demons. Her only concern is the state of the world itself. Humans overpopulate and drain natural resources, so she lets the Demons gain power to eliminate them. Demons then threaten the world, so she wants the Hero to kill them. Then the Hero threatens the world, so she wants the Hero killed. Thus in a scenario where Lugh were to threaten the world...
• Wham Episode: Using reincarnates from Earth is not the only plan the Goddess has setup to kill the Hero.
• What Is This Thing You Call "Love"?: She thinks emotional attachment are a waste of resources and wonders why mortals squander on things like love.
• You Are Number 6:
  • In the anime the Goddess keeps track of reincarnates by the order number she summoned them, rather than name or profession.
  • The anime version of the Goddess also identifies herself as, World Preservation System Administrator #3800, when reporting to The Omnipotent. In Japanese goroawase 3800 can be read as Sa-Ba-Rei-Rei or Server Instance Zero.
  • In the light novel Lugh was the First of four "external factors" she summoned to the world. He also becomes the Last of them.
• You Didn't Ask: The goddess is brutally truthful and answers any question Allen has. She also honors her deal with Allen, so long as Lugh honors his. However he later realizes the goddess only provided answers when specifically asked. When he meets her again, he is quite aware the goddess has been withholding significant information about the nature behind demons, the Demon King, and the Hero.
• You Have Outlived Your Usefulness: In the anime the Goddess doesn't kill the reincarnates summoned before Lugh, but she does withdraw her attention and thus Luck Manipulation Mechanic from them. Therefore lethal outcomes that might have been avoided, are allowed to occur. She has no need to support failed reincarnates.

Aram Karla

• Gold and White Are Divine: Like the Goddess she is impossibly albino and wears white clothing with gold trim. Unlike the Goddess this appearance is Fake Wizardry. She wears white makeup and a white wig to mimic the divine.
• High Priest: The highest ranking priestess in the Church of the Goddess.
• Mouth of Sauron: She can hear the voice of the Goddess and serves as a vessel to deliver divine messages.
• Not So Above It All: She presents herself with the calm and dignity one would expect from the Voice of the Goddess. However behind closed doors she's no different than any other woman her age.
• Ooh, Me Accent's Slipping: She's was born a commoner and betrays her simple upbringing when alone.
• Powers via Possession: She doesn't have any notable abilities or magic beyond hearing the voice of the Goddess. Unless the Goddess possesses her body. Then Arma can interact with demons and not fear of injury or death.

Others

Setanta Mac Nessa

• The Berserker: The skill he received from the Hero. It has all the Super-Strength benefits without the Unstoppable Rage because of another skill paired with it.
• Blood Knight: Constantly fights on the battlefield to find a worthy opponent who can at least hurt him. For a short time he thought that person was Lugh.
• Disc-One Final Boss: He appears right before Dia was supposed to be Faking the Dead. Because of his Healing Factor and divine weapon, Lugh is forced to confront him head on. Fortunately Lugh still manages to defeat him by employing a Kill Sat attack of dropping a massive metal rod from space, killing Setanta in the first strike.
• Healing Factor: His injuries heal faster than restorative spells. What takes priests several minutes to restore, he can regenerate in a few seconds. Unfortunately for him, even it is not enough to save him from being hit dead-on by Lugh's Gungnir, a tungsten rod dropped from high altitude as a Kill Sat attack.
• Honor Before Reason: He offers Lugh the opportunity for an honorable duel to decide who wins the battle. Lugh then stalls for time to cast Gungnir. By Lugh's own admission it was cheating, because an assassin stood no chance of defeat Setanta in a one-on-one battle.
• Infinity +1 Sword: He carries a Sacred Treasure called Gáe Bulg. It is an invulnerable Summon to Hand spear that can knockdown a fortress with one throw.
• Irony: His namesake was the son of Ireland's God of Light, who shares the same name as his killer here: Lugh.
• Named After Somebody Famous: He's a massive reference to Ireland's Child of Light: Cú Chulainn.
  • In his youth, Cú Chulainn was named "Setanta", but took the name "Cú Chulainn" after killing Lord Culann's hound and offering to take it's place.
  • Setanta's Sacred Treasure, Gáe Bulg, is named after the spear Cú Chulainn was gifted by his mentor Scáthach, crafted from the bones of the Curruid.
  • Setanta's Berserk ability is derived from Cú Chulainn's infamous "Warp Spasm", which tore his bones and flesh apart by turning him into a rampaging monster devoid of reason.
  • Setanta's surname, "Mac Nessa", is derived from Cú Chulainn's maternal uncle, Conchobar Mac Nessa.
• Never Found the Body: Lugh looked for his Sacred Treasure within the crater he disappeared in. Since Lugh did not find the weapon or a corpse, he is concerned Setanta somehow survived.
• Nice Job Fixing It, Villain: His appearance during the battle to take out the Viekone stronghold inadvertently saves them because it forces his soldiers to stop fighting while they were winning a battle of attrition. They then have to watch as challenges Lugh to a duel, and are presumably caught up in the blast since Lugh's attack destroyed everything within a few hundred feet.
• Noble Demon: He's a ruthless Blood Knight to be sure and more than likely a little Ax-Crazy, but when he challenges Lugh, he presents himself as very honourable and respectful aside from that; he promises to withdraw his men should he lose, more impressed than angered when Lugh states his intention of killing him, orders his men to withdraw in the event that he's killed so he can keep his word post-mortem, and even acquiesces to Lugh asking that his soldiers fall back they don't get caught in the crossfire of their fight. Unfortunately, all this discussions of terms was simply Lugh buying time so that the tungsten rod he dropped from orbit could hit his opponent directly and kill him instantly.
• No Indoor Voice: Yells so loud his voice carries across the entire battlefield.
• An Offer You Can't Refuse: He stops the attack on the Viekone stronghold after Lugh's attack causes him to taste his own blood for the first time, exciting Setanta at the thought of finally facing off against a Worthy Opponent. He then tells Lugh that either they duel, or he'd slaughter all of the Viekone troops and kidnap Dia.
• One-Hit KO: While it was technically two hits counting the bombardment shot when Setanta first appears, Lugh does defeat him with one attack when he's forced to enter a duel. He defeats Setanta with a Kill Sat attack, dropping a tungsten rod on top of the guy the moment his coin hit the ground to start the duel.
• One-Man Army: Due to his immense strength and endurance, he can fight an entire army alone. It isn't enough to stand up to taking a Kill Sat attack face-first.
• Red Herring: Between his abilities and Ancestral Weapon, Lugh is convinced early on that Setanta is the Hero that he's tasked with killing. He's surprised to learn later that Setanta was just some violent mercenary.
• There Is No Kill Like Overkill: Lugh defeats him with a spell that turns tungsten spears into kinetic drop Kill Sat ordinance. And right as their duel was about to start, no less.
• Worthy Opponent: When Lugh's Bombardment attack damages him enough for him to bleed for the first time, he grows excited at the prospect of fighting someone strong. His joy is short-lived as by the time their duel begins, the assassin had already deployed a Kill Sat attack that obliterates him almost instantly.

Mila Martinez

• Canon Foreigner: Created for the anime adaptation.
• Disposable Intern: She is clearly new to the Organization. Allen seemed under the impression his oversight of her, was a preview of his new role as a teacher for the next generation of assassins. In reality she was just an expendable asset to lower his guard.
• Eager Rookie: She is very eager to show she would be a great agent for the Organization, but Allen shows she still needs to learn how to follow orders and not be so trusting.
• Faux Action Girl: Mila tried to ambush Allen while he's taking a break, but he took the advantage of previously disarming her just to remove the ammo from her PPK.
• Naïve Newcomer: She honestly believed that The Organization was a group dedicated to eliminating criminal organizations and terrorists without bureaucratic red tape getting in the way. She's shocked to learn that she and Allen were only sent to kill specific people of a crime syndicate so they can insert their own people in key positions.
• No Name Given: Like "Allen Smith", her real name is unknown and "Mila Martinez" was her last known alias.
• Unwitting Pawn: The entire reason she was put into Allen's care was to distract him from The Organization's plan to assassinate him. When she finds out, she could only fall into a Twisted-Knee Collapse in despair and eventually die in the explosion that takes out Allen and everyone else on the plane.
• We Hardly Knew Ye: Not a lot of details were made after she first showed up. And due to the story switching settings after the first episode, while she dies alongside Allen and the passengers once the plane explodes. What happened after (as in if she died outright or ended up in a similar situation as Allen) is never followed upon.

Maha's friends

• Break the Cutie: They were captured from the streets, pimped out and beaten very severely. If it weren't for Lugh, they would have turned into broken shells.
• Earn Your Happy Ending: The poor girls went through hell in an Orphanage of Fear for two years. But thanks to Lugh (going by Illig Balor), the director, his henchmen and his clients were beaten up and arrested, the girls got their freedom back, Noine recovered her original face through surgery, and they are now happily working with Maha at Orna's store.
• Fan Disservice: Due to the downright horrific portrayal of them being Sex Slaves.
• I Owe You My Life: They can't express enough how thankful they are to Illig Balor (Lugh) for rescuing them from their Human Traffickers.
• Self-Harm: Maha's best friend, Noine mutilates her own face to prevent herself from being prostituted off. Maha almost follows her example before Lugh stops her.
• True Companions: They are a tight-knit group and look out for each other.

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