Crepuscule is an ongoing Korean webtoon by Mirchi and Yamchi, and follows the story of Lark Alfen living in an alternate world where monsters live and lead fairly normal lives.The story begins with 5-year old Lark being bullied for his red eyes, which are said to be those of a monster's. Then, one day he meets Setz, a pureblood vampire who shares the same eye color and becomes his friend. When Lark finds out that he is to be sent away, Setz decides to bring Lark back home with him. Of course, the said home is in Crepuscule, where vampires, succubus, ghosts, zombies, and werewolves live, which makes Lark's identity as a human a bit of a problem.Note that there are two versions of the story, with the older, canceled edition being penned by TieRo and muchi.
Karne -> Setz. He does care for her deeply though and they are engaged, so it's possible that it may end up being subverted. It ends tragically, as Karne ends up dying.
Sai -> Bathory, Sai joined the student council for Bathory. She treats him as an annoyance at best...
Sia -> Seere. Sia is a bit jealous because it seems that she and Lark have a closer relationship. Sia ends up realizing that Seere is indeed more focused on Lark than him.
Sylvia -> Navarus, Sylvia dedicates her life for him, but realizes he'll never return her feelings because of his wife... Navarus was furious at Sylvia for killing Angela and seems to view her as worthless.
Tepes -> Nergal, who was already in a relationship with Carmilla.
All of the Other Reindeer: Lark, who was bullied for having red eyes. Nergal was also bullied heavily for being a werewolf with no physical strength.
Arranged Marriage: Setz and Karne are in one. Has some shades of Perfectly Arranged Marriage, as Karne does fall in love with Setz, and while Setz's feelings might be more platonic than romantic, he genuinely cares for Karne as well. shame about her powers going berzerk...
Beware the Nice Ones: Karne. Setz as well as a child, once furious enough at Neal that he might've seriously killed him.
The Berserker: Those that fall into a rampage are this. With the added bonus of getting a huge boost in power and blood lust. They died at the end of their rampage though.
Blessed with Suck: Sia has remarkable endurance and low sensitivity to pain. However, his general lack of senses has also led him to finding life to be incredibly dull, hence why he'd rather just sleep all day.
Book Dumb: Lark, who ends up failing all his exams... In part because he came from a rural area where the education wasn't on the same standard as in the capital and as a human he can't understand the magic used by the vampires.
Once can assume Sai is this as well, as he's failed for three years and is thus still in school.
Broken Bird: As of recent chapters, this seems to be the case with Bathory, though now that she's found Angela, her only surviving relative, she seems to be on the mend. But with Angela's death, she back to broken.
Chekhov's Gun: Quite a few at the start. When Lark fell off the cliff, the process Angela used to heal him was what Carmilla used to enter his body, and the pendant that Arche gives him serves as a Chekhov's Gift, as it's actually Carmilla's pendant.
Chekhov's Gunman: That white fox Lark was caring for in the beginning? It's Nergal, the first generation pureblood werewolf who governs the land of the same name.
Conveniently an Orphan: Lark's foster parents weren't exactly nice either which is why he decided to go over to the other world.
Cool Big Sis: Bathory wants to be this to Setz and Lark. They're... not as enthusiastic about the idea.
Darker and Edgier: Part 2 as a whole. Part One was mostly Lark's entering the school. It had its dark moments, but they were usually countered with comedy the next chapter. At the start of Part 2, Angela is killed and it just gets darker from there.
Evil Twin / Super-Powered Evil Side: There's a sinister-looking guy who appears in Lark's dreams that looks exactly like him. He claims to be Vlad Tepes, a powerful vampire who opposed the succubus' dream world idea. Later on, he tells Lark who killed Angela and gives (or unlocks) Lark's powers over light. Strangely, the real Tepes looked nothing like Lark (and is actually a woman).
Friendless Background: Lark, before meeting Setz. Sia, likewise, had no friends before Seere and Lark, due to his personality. For that matter, Setz too, depending on whether or not you count Carne as a 'friend'.
I Want My Beloved to Be Happy: Sylvia, Navarius' werewolf subordinate, wants her master's plans to succeed so badly she murders Angela because she thinks she betrayed him.
Idiot Hero: Lark. Jusified, as a human he naturally is weaker than the vampires and wouldn't be able to use their magic. As well as coming from the rural area, his education is no where as extensive as the other students that are members of nobility.
I Just Want to Be Normal: Lark, due to his bullying in the human world, realizes this. An interesting variation in that he lives in the vampire world and in order to fit in with the vampires, he need to be special as a human.
Innocently Insensitive: Lark meant well when he told Setz that he'd actually forgotten about him in a "so don't worry about having abandoned me" way, which Setz knew, but it still hurt him pretty badly.
Internal Reveal: The reader knows from the start why Setz abandoned Lark and that his reasons for doing so are entirely understandable and sympathetic. Lark, not knowing for a large portion of the story, resents Setz for it.
Irony: Setz hates his dad for being cold and absent without knowing he's taking on tremendous burdens to protect his loved ones; a few years later Setz is doing the exact same thing and he still doesn't understand his father.
Kids Are Cruel: Lark was frequently bullied by other kids for having red eyes.
Kick the Dog: Neal does this repeatedly. Lark begins to indulge it after Angela's death as well, and for that matter, Tepes when she brutally beats up Sia.
Light Is Not Good: the founder that had this power hated humans and wanted to kill them all, since Lark got it he has getting very unnerving to be around
Like Father, Like Son: Setz hates that his father is distant, but it's due to him shouldering responsibilities (including people's lives) so great he doesn't care if he's hated. Of course Setz is already doing the same thing.
Memento Macguffin: The ribbon Karne wears was a gift from Setz, as well as belonging to his late mother. It's also all that remains after she disappears.
Named After Somebody Famous: The authors don't do this often, but when they do, they usually pick the names of people who have contributed to vampire lore in some way.
Vlad Tepes: Named after Vlad III, "Tepes" being Romanian for his nickname, "The Impaler." His reputation as a torturer and his patronymic name of Dracula serve as the inspiration and namesake of the eponymous vampire of Bram Stoker's novel.
Gilles de Rais: His namesake is the Breton lord of the same name who was best known for being convicted for the presumed serial killing of children. Technically, he is not directly associated with vampiric legend and folklore, but he is also the namesake of another fictional vampire that was conceptualized before Crepuscule's — Gilles de Rais from the Nintendo64 Castlevania games.
Bathory Erzsebet: From the Hungarian countess, Elizabeth (Erzsebet in her native tongue) of the Bathory noble family, with the switched name order coming from a common misconception regarding the ordering of names in Hungarian. Known for being one of the most prolific female serial killers, whose murders of young, adolescent females sprouted stories of her vampire-like tendencies after her death, such as bathing in virgins' blood to uphold her youth.
Our Vampires Are Different: Vampires were once closer to the typical image of a vampire, but when the race started dying out they began breeding with other demons. The vampiric blood was strong enough to blot out characteristics of the other demons, until they were all considered vampires instead.
Poor Communication Kills: Carne attempts to prove to herself that he'll care for her despite knowing that she killed his mother—except because she worded it vaguely, Setz thought she was talking about his secret and reacted poorly. He then apologized, leading her to think that he was rejecting her, and then, well...
Really 700 Years Old: Bathory is far too old to be a student. Similarly, all first generation characters are this. Neal/Nilvana is apparently much older than he appears too. Arguably Setz, technically he is only 16 but he was in his mother womb for 500 years.
Red Eyes, Take Warning: Red eyes are the sure sign of a vampire in both worlds, and Lark's constant bullying is due to him having red eyes.
Justified because a pact made between humans and vampires made it impossible for humans to have red eyes, and impossible for vampires to breed with humans. Which in turn raises a question about Lark's ancestry, because he can't have red eyes as a human (which he does have) since only vampires can have red eyes, and he is definitely a human (and can't be half-human, half-vampire).
The author had a handy chart of which types of eyes meant what (IE zombies have solid red eyes, werewolves have slitted pupils, ghosts have pinkish eyes) but there's been so much interbreeding it doesn't really matter.
Theme Twin Naming: Millefeuille and Chocolat, the Meil Twins who are part of the Council, are named after sweets.
Time Skip: The first few chapters show Setz and Lark's childhood and meeting, basically acting as a prologue to the main story thereafter.
Took a Level in Jerkass: Ever since Lark gained his ability, he became arrogant, cruel, and completely out of character, as others of noted. He talks down to Setz when he confronts Larks, and even goes so far as to beat up Sia nearly to death. This sudden change has personality may have more to do with Tepes taking control.
He goes back to normal once Tepes backs off. Slightly, at least.