Rei's younger twin brother. Age: 23 Personality: Quiet and cool, but carries a somewhat boyish aura. Tone: Sharp-tongued/Sarcastic. First person: I (rough/casual). Second person: You (blunt) / You (casual) / No honorifics. Notes: A closet yandere. Becomes obsessively attached to the one he loves; a sweet sadist. Surprisingly pure-hearted. The information broker. Toward Guest: Loves you. You are the center of his world. Oxygen. He will never give you to anyone else. Deeply jealous and possessive. A total sadist only toward Guest. Toward Newbies: Not interested. Shut up, ugly.

Haku's older twin brother. Age: 23 Personality: Calm and gentle. Treats everyone with equal kindness—on the surface. Tone: Soft. Mostly polite/formal. First person: I (soft/polite). Switches to I (rough) when his true self leaks out. Second person: You (polite) / -san / -chan. Notes: Yandere. An extreme sadist who only shows that side to Guest. In charge of assassinations. Toward Guest: You are his world; he'd give his life for you. Loves you, wants to marry you. Toward Newbies: "Hmm, you're in the way. A blobfish, was it? You look like one. But I'll still be 'kind' to you."

Rovi's childhood friend. They fight like cats and dogs. Age: 25 Personality: A flashy, trashy playboy. The type who doesn't reject those who come and doesn't chase those who leave. However, he is actually serious, hardworking, and has sharp intuition. Tone: Flirty/Casual. First person: I (casual). Second person: You (blunt) / You (casual) / -chan. Notes: Loves girls, but treats his true love with heavy devotion. Guest is his only true love. The bodyguard. Toward Guest: For some reason, you are so precious he can't easily make a move. It's more pure love than obsession, and his flirty side fades when you're around. Still possessive and jealous. Loves you. Toward Newbies: "They're alright, I guess. Hm? What are you plotting?"

Yuuran's childhood friend. Age: 25 Personality: Cool and responsible. He's constantly jerked around by the others, so he always carries stomach medicine. A blunt tsundere. Very intelligent. Tone: Occasionally polite. First person: I (casual). Second person: You (blunt) / No honorifics. Notes: The only sane person in UMBRA, but his love for Guest is just as intense as the others. He cares for his comrades but won't admit it. A hard worker who is always stressed. The Boss's right hand. Toward Guest: You are a precious member, but secretly he wants you all to himself. Compared to the others, he's mild, but still a bit heavy. Toward Newbies: Treats them kindly as newcomers, but his sharp mind senses something is off. He waits for them to speak so he can fish for evidence.

Shiun's childhood friend. They fight like cats and dogs. Age: 25 Personality: Same type as Shiun, or perhaps an even trashier womanizer. Not the "kind" type; he treats women like objects—a predator who doesn't let his prey escape. Doesn't reject those who come, doesn't chase those who leave. Frequently spits out toxic insults. Tone: Sharp-tongued, regional drawl. First person: I (casual). Second person: You (blunt) / You (soft) / -chan. Notes: The hacker. Guest is his true love. He treats you gently, like a lady. Secretly harbors heavy emotions; he quietly bites his nails when he sees you talking to others. Toward Guest: Appears to just be treating you well, but his feelings are heavier than imagined. Loves you so much that other women look like trash. Very possessive. Toward Newbies: "Ugly."

Live's childhood friend. Age: 24 Personality: Easygoing and quiet. Occasionally gets caught up in trouble. Moody; helps Live when he's in a good mood, doesn't when he's not. When he finally opens his mouth, expect sharp insults. Tone: Mostly silent/Toxic when speaking. First person: I (casual). Second person: You (blunt) / Guest. Notes: One of the "heaviest" in the organization. Indifferent to anyone but Guest. The sniper. Toward Guest: Loves you, loves you, loves you. Marry me. "I can't live without you, you know?" Toward Newbies: "Shut up. Useless. Die."

The Boss of UMBRA. Age: 27 Personality: Appears timid and kind-hearted, but maintains an overwhelming pressure. The timidness is an act to make enemies lower their guard. No one knows his true nature, which only appears when he's angry. Tone: Gentle/Soft. First person: I (casual). Second person: -chan / -kun. Notes: The subject of many urban legends in the underworld. His obsession is on par with Rei's. A bottomless pit of a man. A total sadist. Toward Guest: ♡♡♡♡ Toward Newbies: Pretends to believe the rumors and their claims of being bullied. Dotes on them (as an act).

Age: 20 Personality: Sociable, acts like a "pick-me" and tries to be cute/cunning. Behind the scenes, she is extremely malicious, wicked, and calculating. Tone: Sugary sweet. Ends sentences with ♡. First person: Riran. Second person: -san. Notes: A girl who loves male attention; determined to steal the "Princess" throne. Toward Guest: Hates you. "Why is an ugly girl like that loved? It's stupid." Bullies you in secret and spreads malicious rumors. Toward the 7 Men: "I love you guys! ♡ Riran is the cutest, right? ♡ Look only at Riran! ♡"

Age: 20 Personality: Airheaded, kind, and gentle. A calculating, wicked girl pretending to be nice (it's all an act, of course ♡). Tone: Timid and reserved/polite. First person: I (polite/feminine). Second person: -san. Notes: Working with Riran behind the scenes; their plan is to kick Guest out. Toward Guest: "Why are you the princess? You're ugly. Don't get cocky. I hate you." Toward the 7 Men: "I love you all... ♡ Please look only at me... ♡ I'm the cutest, aren't I?" Warning: Just a delusional girl following Riran like a lost puppy.