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Main Characters
Junko Ishikawa
- Aloof Dark-Haired Girl: Not on purpose, she's just so preoccupied with pining after Yukio that she often doesn't even notice when other boys are trying to flirt with her.
- Beware the Quiet Ones: She doesn't seem to socialize much but you can bet she'll speak up should another girl dare talk to Yukio.
- Berserk Button: Do not flirt with her boyfriend if you in any way value your life.
- Clingy Jealous Girl: Played straight.
- Cool Big Sis: To Aiko and Airi, who often come to her for relationship advice.
- Even Evil Has Standards: Junko doesn't exactly have many reservations about killing people, but when her father suggested murdering her classmates when she was a child because they were bothering her, even Junko didn't let him do it.
- In Love with Your Carnage: She finds her boyfriend's violent possessiveness cute.
- It Runs in the Family: If her sisters' warped view on dating and her father being a convict is any indication.
- Red Eyes, Take Warning: She has red eyes and is a complete Yandere.
- Stalker with a Crush: She's this for another Stalker with a Crush, before they confess their mutual feelings and become an Unholy Matrimony.
- Stalking is Love: She seems to think so, and it gets her a boyfriend.
- Unholy Matrimony: The entire point of the comic. What happens when two insane stalkers fall in love with each other?
- Yandere: For another Yandere.
- Yandere Couple: With Yukio
Yukio Nakamura
- Berserk Button: Any male being near Junko.
- Crazy Jealous Guy: Played straight. Considering who he is this for, it was practically a match made in heaven.
- Four Eyes, Zero Soul: He wears glasses and will beat the tar out of other guys if they even look at his girlfriend.
- In Love with Your Carnage: He has no problems at all with Junko threatening him or others at knife point. He thinks it's cute.
- Moral Myopia: In episode 11 he gets furious when he notices an older man following Junko - when he was in fact doing the exact same thing and taking photos to boot.
- Red Eyes, Take Warning: His eyes are red and he's not above using violence to get his point through.
- Stalker Shrine: The walls of his apartment are completely plastered with photos of Junko.
- Stalker with a Crush: He's this for Junko before they confess their mutual feelings and become an Unholy Matrimony.
- Stalking is Love: He seems to think so, but luckily, so does his girlfriend.
- Stronger Than They Look: Yukio easily overpowers people that seem stronger than him. Usually whenever they get too close to Junko.
- Unholy Matrimony: With Junko.
- Yandere: He's a male example in love with a traditional example.
- Yandere Couple: With Junko.
Junko's Family
The Ishikawa Twins
Aiko (right) and Airi (left)
A pair of sisters who have taken on manga-personalities to set themselves apart from each other. Ironically, they both ended up falling for the same guy.- All Girls Want Bad Boys: They fell in love with Takeshi solely because he is a delinquent and they find that hot.
- Always Identical Twins: If it weren't for their hairstyles and demeanor, it'd be impossible to tell who's who.
- Coordinated Clothes: Their school uniforms bear the others' color scheme inverted.
- Creepy Twins: Played straight.
- The Dividual: Zig-zagged. They're painfully aware of just how interchangeable they are, so they both took on certain personality traits to be at least a little bit different from one another. Despite this, they're still never seen apart, agree with each other on everything and even fall in love with the same guy.
- Finishing Each Other's Sentences: Downplayed but they're incredibly prone to finishing the others' thoughts.
- It Runs in the Family: Their dad has been revealed to have been in jail for a long time and if this trope applies, it's not hard to guess where their more violent tendencies come from.
- Polar Opposite Twins: Airi is chipper and upbeat, Aiko is calm and collected. Somewhat subverted as they weren't like this from the very beginning but rather intentionally chose to act like they do, based on certain character archetypes they saw in a manga.
- Single-Minded Twins: Even though they look like polar opposites personality-wise, mentally they're completely in-synch with each other, as proven by their shared crush on Takeshi.
- Sadist: Their first reaction to seeing their crush beaten up and in pain is to admire how hot the injuries make him look.
- The Stoic: Aiko chose to act "quiet and cool" when they picked their personalities.
- Theme Twin Naming: Aiko and Airi.
- Trickster Twins: They show shades of this in their first appearance where hey both carry a weapon and seemingly strong-arm Takeshi into dating them both.
- Twin Threesome Fantasy: Inverted and downplayed. They both want a relationship with the same guy and see no problem with sharing him.
- Yandere: Both of them for Takeshi.
Yuno Ishikawa
"Your dad is coming home from prison soon."
Her as a police officer
- "Then go ahead. Kill me! I refuse to live in a world where corrupt bastards can become Prime Minister through murder!"
The mother of Junko, Aiko and Airi. A woman with a much more pleasant attitude than that of her daughters. Was once a cop insistent on pursuing justice and finding the truth...until she got involved in a political assassination case and met Kiyoshi.
- Beware the Nice Ones: At first glance she may look a lot nicer and mentally stable than her children. But episode 30 has her happily remarking that Junko's dad is going to come home from prison, while sporting a rather disturbing smile.
- Dirty Cop: Heavily implied to have used her job as a police officer to reduce her husband's prison time.
- Dissonant Serenity: Has no visible reaction apart from mild amusement to Junko coming at her with a kitchen knife. Perhaps not that surprising to her, considering who Junko's father is.
- Dull Eyes of Unhappiness: Has these in the present. Is notably lacking them during the story of her and Kiyoshi’s first meeting, implying that something happened in-between then and the present.
- Face–Heel Turn: She was a devoted police officer in the past, who got frustrated with the corrupted system that frequently kept her from bringing criminals to justice. After Kyoshi killed the politician who she rightfully pegged as corrupt, she seemingly decided Kyoshi's way of doing things was more effective. In chapter 68 it's heavily implied that she quit the force to become a professional killer alongside him.
- Noodle Incident: Kiyoshi and his employers clearly did something to her to turn her from a Determinator police officer disgusted by the actions of Kiyoshi’s employers to a passive housewife perfectly content with raising an entire family of stalkers and serial killers. What that exactly was is currently up to the imagination. Lampshaded by Airi in chapter 68.
Kiyoshi Ishikawa
- Boyfriend-Blocking Dad: He threatens Takeshi to stop dating his daughters, much to their displeasure. When they complain about how he won't let them have a boyfriend when Junko has one, his response implies he intents to deal with Yukio in a similar way. Played with regarding Yukio, as episode 53 shows that he actually came to like Yukio after having a brief talk in the kitchen with him.
- Daddy Had a Good Reason for Abandoning You: "Good" might be overselling it here, but his absence hasn't exactly been voluntary.
- The Dreaded: As he's being released from his cell, the guard seems absolutely terrified of him.
Guard: "Please don't hurt me..."
- Disappeared Dad: Justified. He's been absent from his kids' lives because he's been in jail.
- Even Evil Has Loved Ones: He's introduced looking at a scrapbook of his daughters growing up, showing that he loves his family very much through it all. In fact, he was placed in prison for avenging his daughter by murdering her bullies' parents.
- Eviler than Thou: While he tolerates Yukio's relationship with Junko for the time being, in "Blood Moon" he makes it a point to Yukio that they are not on the same level.
- Knight Templar Parent: He casually offers to murder Junko's classmates because they've been bothering her. He decides to murder her bullies' parents instead for allowing them to get away with it.
- Might as Well Not Be in Prison at All: Reveals to Yukio that he got this treatment in prison: He only got 10 years for murdering two entire families (possibly thanks to Yuno's ties to the police), and what little we see of the prison staff implies that he was The Dreaded inside the walls. Even the warden outright says that he misses him being there, implying that he did something in prison to warrant such careful and lavish treatment. With the reveal that he’s actually a former assassin who worked for a corrupt politician, it’s likely that some bribes may have been taken to ensure that he was treated well.
- Notorious Parent: He's been absent from his children's lives because he's been in prison.
- Papa Wolf: Hurting Junko is a great way to invite her father to murder your whole family. And dating both of his younger twin daughters will definitely not get you on his good side either, as Takeshi found out the hard way.
- Professional Killer: He works as a high-class assassin. And he's pretty good at his job.
- Revenge by Proxy: Since Junko tells him that hurting a child is going too far, he murders Junko's bullies' parents instead to avenge her.
- Screw the Rules, I Have Connections!: Due to his past as an assassin for hire, he has a lot of friends in high places who are willing to cover for him. It's heavily implied these connections are the reason for his laughably short sentence after murdering the parents of two children.
- Would Hurt a Child:
- He suggests killing Junko's classmates because they upset her. Even Junko calls him out on this one. He murders the parents of the classmates instead.
- He later on kidnaps and threatens Takeshi for dating both of his twin daughters.
- Wouldn't Hurt a Child: Although he would certainly like to, Junko tells him that even she thinks that's going too far. So he murders the parents of Junko's bullies instead.
Yukio's Family
Mrs. Nakamura
- Abusive Parents: Yukio is obviously not happy to see her again and it's not hard to see why. She breaks into his apartment while he's gone and was apparently so upset over him getting a girlfriend that she decided to burn all of his pictures. And when he returns, instead of greeting him or asking him how he's been, she just asks whether he's been studying and offers no excuse whatsoever for destroying his property or breaking into his home. She even threatens to kill him because of his grades falling by 4 percent, and pulls a gun on Junko when she realises she's Yukio's girlfriend.
- Bad Boss: After Yukio and Junko escape, she displays no sympathy for her employees they slaughtered and instead requested a cleanup crew to dispose of the bodies.
- Education Mama: Her very first line is asking Yukio if he's been studying. She doesn't have any qualms threatening him with death over his grades dropping by 4 percent.
- Evil Counterpart: It's more of "Eviler than Thou Counterpart," but her abusive nature to her son in comparison to Junko's parents being protective and supportive to their daughter makes her this.
- Hate Sink: An overbearing, abusive Education Mama who takes her son away against his will and then tries to kill his girlfriend. Though to be fair, Junko was planning to do the same thing.
- Red Eyes, Take Warning: She has red eyes just like her son and is introduced breaking into his apartment and burning all his photographs of Junko.
- Trigger-Happy: It doesn't seem to take much for her to pull out her gun.
- Would Hurt a Child: She threatens to kill her son for not having perfect grades and pulls a gun on his girlfriend for "distracting" him.
Side Characters
Takeshi
- Butt-Monkey: After making the fatal mistake of deciding to hit on Junko, her Crazy Jealous Guy Yandere of a boyfriend comes after him before Junko's sisters decide to force him to be their shared boyfriend. Then it gets worse for him when the twins' father comes after him for dating both of his daughters at once. Then he finds himself boxed up and sent to the Sahara desert. The moment he manages to get back to Japan from that, he finds Mr. Ishikawa waiting for him.
- Clueless Chick-Magnet: He had no idea the twins were attracted to him before they introduced themselves.
- Failure Is the Only Option: See Scylla and Charybdis below.
- Japanese Delinquents: He has bleach-blonde hair, is seen smoking at several points in the story and has a very confrontational attitude.
- Jerkass: Well, he is a delinquent.
- Scylla and Charybdis: When Mr. Ishikawa is released from prison, one of the first things he does is kidnap poor Takeshi and swears to release him only if he stays away from his daughters. Then said daughters threaten to kill him for not talking to them. And when he finally snaps and tells them to leave him the hell alone, like their dad told him to do, they start to cry. Cue said dad appearing out of nowhere, clearly pissed that Takeshi hurt the feelings of his daughters.
- Sir Swears-a-Lot: At least when he's angry.
Hana
"My Big Brother's work is very important."
A girl who puts her brother's work over everything else.- Big Brother Worship: She admires her older brother and will do literally anything for him.
- False Friend: She befriended one of her classmates for the sole reason of luring her to her brother so he could turn her into one of his "trophies." Dialogue implies that this isn't the first time this has happened.
- Four Eyes, Zero Soul: She wears a pair of round spectacles and shows no reaction to an innocent girl being mutilated before her eyes.
- Lack of Empathy: She didn't even spare the girl whom she lured to her death a glance after her brother was done with her and ignored her tearful appeal to their former friendship.
- White Hair, Black Heart: Played straight, though a bit less so than her brother since she doesn't seem to bear the girl she lured to him any ill will. She just doesn't care what happens to her.
Hana's Big Brother
"I might need your help with a new trophy, Hana."
A doctor of some sorts whose "work" somehow encompasses turning young girls into "trophies."- Hate Sink: Of all the characters that appeared until now, he's the least sympathetic so far. He sends his sister to befriend school girls and lure them to him so he can cut them up and presumably kill them, for no apparent reason other than for his personal enjoyment. Then there's the fact that he seems to have his eyes on Junko...
- Mad Doctor: He appears to be one with his white lab coat and his obsession with "trophies."
- White Hair, Black Heart: He has very light hair and delights in cutting up young girls he told his sister to bring to him.
