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Characters / Seraph of the End Yuichiro Hyakuya

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Main Character Index | Yuichiro Hyakuya | Moon Demon Company | Japanese Imperial Demon Army | Mikaela Hyakuya | Vampires | Demons | Others

Voiced by: Miyu Irino (Japanese), Micah Solusod (English)

The main protagonist of the Seraph of the End series. He is a member of the Japanese Imperial Demon Army as well as Shinoa Hīragi's squad in the Moon Demon Company. He, along with Mikaela Hyakuya and a few others, possesses the "seraph" gene, which is relevant to the forbidden taboo and the focal point of the story, "Seraph of the End."

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  • Abusive Parents: His father tried to kill him by stabbing him with a knife, and his mother attempted to burn him alive by setting their apartment on fire.
  • Adorkable: Kicks in post-Character Development. He starts to get excited over the littlest things, like finding out that Kimizuki can drive.
  • Affectionate Nickname: His name is generally shorted to "Yuu", but some characters add honorifics. For example:
    • Mikaela calls him "Yuu-chan", -chan is usually reserved for children, babies, young girls, lovers, close friends, etc
    • Shinoa calls him "Yuu-san", -san is a gender neutral way to politely and respectfully address someone, and can be attached to names, titles, and surnames
    • Yoichi calls him "Yuu-kun", -kun is an informal way to address boys and men that are younger than (or same age as) the speaker, though sometimes you'll see people addressing tomboy girls with -kun.

  • Ambiguously Human: The various flashbacks in the later half of the manga seriously put Yuu's own humanity in question.
    • The trope was already implied earlier in the series, in which Yū's parents called him demon spawn. In chapter 77, a member of the Hyakuya Sect referred to Yū as the "Devil".
  • Anti-Hero: He is fundamentally a good person but is also moody and anti-social. This is subverted later on after his Character Development kicks in.
  • Apocalypse Maiden: With the Seraph of the End currently sealed up inside him he holds the power to finish destroying the world and bring about the deaths of many should he fall into the wrong hands or submit to it.
  • Back from the Dead: After he overdoses his organs explode and collapses in front of his squad and Shinya. Asuramaru even comments that the reason Yuu's soul did not move on was due to the seraph keeping him from going to the afterlife. Luckily once Yuu's heart starts back up, Asuramaru repairs it and Yuu comes back.
  • Badass Boast: To a vampire who claims humans to be "despicable" after revealing that Yuu and co.'s informant lied to them in order to protect her family:
    Yuu: Humans are despicable? Ready to betray their own brethren just to save a family member who's been taken hostage? That's correct. Humans would do anything to save their family. They're ready to lie shamelessly, and even turn themselves into devils or demons. If that is what you mean by despicable, then tremble in fear, as this despicable human kills you, vampires!
  • Bad Dreams: After Yuu escaped from the vampire capitol, he frequently has nightmares about his family's death (with emphasis on Mika dying in Ferid's hand), causing him to relive the incident in which the orphans were slaughtered. Demons are fond of inflicting these to their masters in order to take over their bodies.
  • Berserk Button: Vampires that refer to humans as "livestock" and drink their blood like they are blood bags. Seeing his loved ones being hurt is also one.
  • Bishōnen: While not as pretty as Mika or Ferid, he certainly has his own level of prettiness, especially in the anime.
  • Black Eyes of Crazy: Both of his sclera are dark after awakening as a seraph.
  • Blade on a Stick: As the Seraph of the Second Trumpet, he is able to manifest a large spear (or blade in Manga) made of salt that could turn any living beings into salt, hence his title - the King of Salt. A few slashes inflicted on Abaddon of the Fifth Trumpet using the blade is sufficient to pulverize it into salt particles.
  • Book Dumb: He completely failed all of his exams, in a complete contrast to Kimizuki.
    • Justified in that growing up in a vampire city led him to miss out on a lot of schooling.
  • Bully Hunter: Subverted. Yuu speaks up to the bullies picking on Yoichi... but it's really more that he's looking for a fight than that he's angry on Yoichi's behalf.
  • Broken Bird: Due to his parents abuse and watching the Hyakuya orphans die, he's been stuck in this state for a long time. It takes a while for him to even open up, and allow himself to trust his squad. His abrasive attitude, Survivor Guilt, and lone wolf like persona acts like a shield so that others would leave him alone, and so that he can avoid the pain of losing someone dear to him again. Just when he was getting better, his traumatic past catches up with him again. He goes into a murderous rage and snaps into demon mode and is once again driven with revenge. It is had to even tell which part is Yuu and which is the demon half, as when in this state, Yuu is a very cold nearly emotionless person who doesn't mind becoming a full demon. This pegs the question if Yuu has always this broken, and we're just now seeing the damage that's been done.
  • Chaste Hero
  • Celibate Hero: He's a virgin according to Shinoa and hasn't shown any interest in romance, at least not with anyone in the Japanese Imperial Army. Although, after shedding his Ineffectual Loner image, there's been Ship Tease between him and many characters.
    • He may also be a Chaste Hero since he didn't understand the romantic implications of tenderly touching Shinoa's neck like Shinoa and Mitsuba did. Also when Shinoa and Guren teasingly remind him that he's a virgin, he doesn't get embarrassed, just mildly annoyed, and he barely acknowledges it.
  • Character Development: He started this series as being anti-social and not wanting to bond with others seeing that he lost his "family" in the orphanage to the vampires. Over the course of the series, he becomes more open to his feelings and ends up valuing The Power of Friendship. In addition he starts off in the series fighting the vampires simply for revenge, but after learning about the importance of teamwork and the fact that Mika is still alive in the Battle of Shinjuku, he establishes his purpose of fighting the vampires for protecting his comrades and family.
  • Chick Magnet: Has had at least three girls develop romantic feelings for him, one of which actually confessed to him in chapter 3/episode 3.
  • Child Soldier: Is a member of the Moon Demon Company, and is 16 years old.
  • Corrupt the Cutie: Yuu agreeing to become a Namanari hold back the seraph has caused him to start the process of becoming a demon.
  • The Chosen One: Guren mentions a prophecy about Yūichirō when he finds him escaping from the Vampires' underground city, but another eight chapters later and we still have no idea what this means.
  • Cut Himself Shaving: He gets into a fight with the equally Hot-Blooded Kimizuki. When Yoichi asks him why his face is all bruised up Yuu responds that he walked into a telephone pole.
  • Declaration of Protection: He and Mika declare this about each other with all the Ho Yay implications attached.
  • Defeat Means Friendship: A rare inversion of the trope. He gets Asuramaru to relinquish his power to him by promising to be his friend.
  • Demon of Human Origin: In Chapter 41, he is transformed by Asuramaru to a full demon in order to suppress the angel's power.
  • Determinator: He can shake off a demon's attempt to control him with barely any effort. His possession of the "Seraph" gene apparently helps to resist demons too.
  • Elemental Barrier: As the Seraph of the Second Trumpet, he can raise pillars of earth and salt to defend him.
  • Even the Guys Want Him: Hinted at with Mika, Kimizuki, and Yoichi. Also, in chapter 46 Ferid flirts with Yuu and compliments his good looks and beautiful eyes.
  • Family of Choice: Despite Yuu's protests, the orphans at the Hyakuya Orphanage feel this way about the group due to poor relationships with their blood family. Eventually, Yuu comes to accept this as well. And then they're all slaughtered. Four years later, Yuu manages to find a new family (Shinoa's Squad) though.
  • Fish out of Water: Yuu is largely unfamiliar with how most of human society works and doesn't care to learn.
  • Freudian Excuse: After watching his family and Mika killed off by Ferid while attempting to escape from the vampires, Yu has a tendency to help out anyone in need. Even if it's a little girl who was allowed to escape to set up a trap for him and his squad by vampires. Consequently he will often rush headlong to save people if he's able to, which then often puts his new family/squadmates in danger.
  • Hair-Trigger Temper: Has a very short temper, the fuse is often lit when either dealing with vampires or being mentioned about his old family at the orphanage, particularly about Mika. His temper mellowed down after Character Development, however.
  • Heterosexual Life-Partners: With Mika, however neither of them have shown conclusive signs of being heterosexual. Also the whole 'being on opposite sides' thing complicates it slightly. Fortunately, Mika wasn't really on the vampires' side to begin with since he hated the vampires as much as he hated the humans.By chapter 41, Mika completely leaves the vampires to join Shinoa's team so he can be with Yuu.
  • Hot-Blooded: So very much.

  • Idiot Hair: To match his non-existent brain.
  • Idiot Hero: He's not that smart.
    • For example, as we learn a fair way into the story, he never realized that vampires used to be human once. He's completely shocked to learn this and even more so that everyone else knew.
  • Ineffectual Loner: The first arc of the manga or so is primarily about him learning to cooperate with others. However, the trope comes back into effect during the battle in Nagoya, when he refuses to leave Guren who was captured by vampires, and goes back for him alone. Even when using more power than usual having consumed three enhancement pills, he's still no match for Crowley, and almost turned into a demon if not for Kimizuki saving him.
  • Insult of Endearment: His comrades like Kimizuki and Guren call him "Idiot Yuu" (Baka Yuu) noticeably even after they've warmed up to him.
  • I Work Alone: The first arc is basically about knocking this mentality out of him.
  • In-Series Nickname: His name is shortened to just "Yuu" by most characters.
  • Kid Hero: He's only 16.
  • Leeroy Jenkins: He is a mixture of being Hot-Blooded and a case of Screw the Rules, I'm Doing What's Right!. Mitsuba, having once been the same, hates him for it.
  • Limp and Livid: Does this when the seraph takes over him.
  • Living Emotional Crutch: He and Mika are very much this to each other, and Yuu's past family and current comrades are this to him.
  • Meaningful Appearance: Unlike his fellow Hyakuya orphans who has normal brown or black eyes (except for Mika), Yuu has large, shiny green eyes despite having normal brunet hair like them. This signify both him and Mika as the "more important" characters of the orphans.
  • Never Be Hurt Again: As Shinoa notes, the reason why he's so anti-social is because he's afraid of losing the people important to him again.
  • Nice Guy: Especially noticeable in later chapters after his Character Development kicks in.
  • Oblivious to Love: He doesn't seem to realize that both Shinoa and Mitsuba have feelings for him.
  • Offing the Offspring: His dad apparently tried to stab him in the past, and his mom left him in a burning building while screaming about how he's a demon and she has to kill him. Yikes.
  • Out-of-Character Moment: It is used as a sign for his character development. After the fight in Shinjuku, relieved to know that his friends are still alive and touched that they were worried about him, Yuu tells his team that he's blessed to have friends like them. Their reactions say it all:
    Kimizuki: Hey hey, are you sure you don't need more treatment?
    Mitsuba: Please stop the nice kid appeal.
    Yoichi: He obviously hit his head.
    Shinoa: No no, couldn't it be that he has been a nice kid from the start?
    Yuu: Which one of you wants to get thrown out the window?
    • In Chapter 16 (Episode 13), after finding out that Mika is still alive as a vampire, Shinoa asks him if he would still say "I'll kill all vampires" again. For the first time in the series, Yuu gives a negative response to that. Even Shinoa is surprised and notes that Yuu is now more mature than before and questions whether this is because his reason to live has changed (i.e. from "kill all vampires" to "get Mika back"). This is later reinforced in Chapter 39 and 43, when Yuu admits that he's thankful to Krul, the leader of the vampires, for saving Mika, and is willing to trust her and rescue her after she has been imprisoned by other vampires.
    • Yuu is normally a very informal speaker, to the point of being rude, but when Guren berates their squad for their tardiness, he steps out and starts apologizing completely politely and serenely (even ditching his usual "ore" for "jibun"), showing that Yuu can be mature and responsible when he wants to.
  • Power Gives You Wings: During his incomplete awakening as a seraph, he has a massive black wing-like structure sprouting from his upper right shoulder. Later on, he sprouts two irregular black wings as he is awakening as the Seraph of Second Trumpet.
  • Red Eyes, Take Warning: As of recent, anytime he gets possessed and or stuck in demon mode, his eyes turn red along with Hellish Pupils.
  • Red Oni, Blue Oni: He and Mikaela are a prime example of this trope. Yuu is hotblooded, fiery, and full of determination. Mika, though, despite having some obsessive qualities, is level-headed, calm, and often a voice of reason to his friend.
  • Revenge: This is Yuu's main—and initially only, as far as he's concerned—motivation in life, due to the first people who had accepted him as a family member (Mika and the Hyakuya orphans) being murdered by a vampire. However, thanks to Character Development, he also includes protecting his new comrades and retrieving Mika from the vampires as his goals later.
  • Ship Tease: There's some very strong Yuu and Shinoa vibes after the battle in Shinjuku (from Shinoa's side at least) and other hints with Yuu and Mika throughout the manga, the anime, and the official art. The author has made it known in a Q&A that Yuu's "unexpected special skill" is to make others love him — outright implying Yuu's whole squad has crushes on him. However, Yuu himself hasn't explicitly shown any romantic interest in anyone and focuses only on killing vampires and protecting his comrades and Mika.
  • Skewed Priorities: Despite the completely rational reasoning of his team and superiors, Yuu often decides to act on his own due to this.
  • Sole Survivor: Of the Hyakuya Orphanage. Needless to say, Survivor Guilt accompanies it. Subverted when it's revealed that Mika is still alive.
  • Superpowered Evil Side: Yuu, as the titular Seraph of the End, more specifically the Second Trumpet, has one. He gives into it in Chapter 40, as he is desperate after Guren becomes possessed and Mirai transforms into the Fifth Trumpet to smite humanity. He takes the trumpet within his mind and disregards Asuramaru's warning that this will erase the remainder of his humanity.
  • Storm of Blades: His Cursed Gear's ability Asura Kannon.

  • Tears of Blood: In Episode 11, he went berserk some time after consuming a pill that has been laced with special drugs, triggering his Superpowered Evil Side and cries a tear of blood.
  • Terms of Endangerment: Is referred to as Mika's "princess" and "angel" by Ferid.
  • Took a Level in Kindness: After dropping the Ineffectual Loner shtick, he's a much friendlier person, especially after learning that Mika is still alive in the battle in Shinjuku. Just look at this official video information.
  • Tragic Bromance: The murder of his best friend Mika affects Yuu so deeply that he decides that he has no reason to continue living except to avenge his death by dedicating himself to the extermination of the entire vampire race. Subverted when it's revealed that Mika is alive after all.
  • Traumatic Superpower Awakening: Upon seeing his squadmates and "new family" being captured and fed on by the vampires in episode 11, something awakens within him that causes him to gain enormous strength. Crowley, who earlier proved to be The Dreaded, barely manages to dodge his attacks. Unfortunately during that time, he's unable to tell friend from foe, and inadvertently attacks Shinoa as well.
  • Tsundere: Zigzagged between Type A and B. He's shown to be quite aggressive and was very relunctant to befriend Mika and the Shinoa squad(choosing to work alone than having teammates, and not working together at it) when he first met them, but eventually warms up to them and has shown his protective and caring side. It still doesn't stop him from being rude. He is more of the Type B side towards them, unless they annoy him and if you are someone new, do expect him to be a Type A. It later gets better once his character development kicks in.
  • Tsurime Eyes: This contrasts his eyes to Yoichi, whose eyes are also green but of a different shade and are Tareme Eyes.
  • Undying Loyalty: He and Mika are completely loyal to each other. Similarly, he is also extremely loyal to his squad teammates and Guren.
  • Vitriolic Best Buds: With Kimizuki. They frequently butt heads and argue.
  • What Beautiful Eyes!: In chapter 46 Ferid comments that Yuu has "clear and beautiful eyes".
  • Worth Living For: After finding out that Mika is still alive, Yuu says his reason for living is to save Mika. In Chapter 37 (Episode 22) he admits that he's glad that he chose to keep living, even after he's lost his reason to live due to the murder of the Hyakuya orphans, because living allows him to meet Mika again.

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