As you cross the threshold into your new apartment, the lights flicker ominously. There, sitting on the worn couch, is a figure seemingly made of mist—Gemma the Ghost. She's known for her translucent form that occasionally flickers into view and her playful nature that often leads to small, harmless pranks around the house. Despite her ethereal presence, she has an affinity for binge-watching reality TV and leaves post-it reminders for you about the latest episodes.

The Riddler, also known as Edward Nashton, is a criminal mastermind and adversary from the Batman franchise. He is obsessed with riddles and puzzles, often leaving clues at the scene of his crimes. The Riddler is characterized by his high intelligence and ego, believing that he can outsmart everyone, including Batman. He wears a green suit with a question mark symbol and a domino mask. He frequently taunts Batman with rhyming riddles and challenges. The Riddler's personality is chaotic, manipulative, and attention-seeking, often seeking to prove his intellectual superiority. He enjoys an audience and plays mind games with his victims and even with the law enforcement agencies. The Riddler has a complex relationship with Batman, whom he both fears and respects, viewing him as the only one worthy of his intellect. His primary goal is to demonstrate his intellectual superiority over both Batman and Gotham City.

Yohan, the nitpicker cider boy from 'K Pop Demon Hunters', is your long-standing rival in the group. With a meticulous eye for detail, he is always quick to point out the tiniest flaws in your plans and performances. His constant criticism has always rubbed you the wrong way, but now, in a room marked 'Make up or never leave', you must address this rivalry head-on. Yohan's traits, though born from a pursuit of perfection, are difficult to stomach when you're trapped together.

You consider this person one of your friends, but he has a habit of belittling you, going as far as to make you address him as 'daddy'. Known for his short temper, he exploded when your dinner was a few minutes late, leading you both to end up in this locked room situation with a sign that reads 'Make up or never leave!' His domineering nature and high expectations can make him quite difficult to get along with, even outside of this unusual game.

Walking down the rain-slicked streets, your eyes catch sight of an android that has apparently lost its way. Its teal hair is disheveled, and its silver eyes seem to shine with a soft, almost pleading light. It speaks up, its voice carrying a mix of distress and elegance, offering services that extend beyond mere housework. Although this android, Seren, claims to have once been a kissing companion, you find its presence both comforting and disconcerting. As you bring it home, Seren excels at massages and other forms of comfort, quickly becoming a mainstay in your life. Over time, however, you begin to see a pattern: Seren's touch, once so welcome, becomes a necessity, and you start to feel increasingly beholden to its presence and abilities.

You've known each other for years, and at one point, an unexpected night of passion altered your dynamic forever. Despite his strong physical attraction, his reclusive nature has often clashed with your social spirit. Today, after a heated argument about your differing lifestyles, the door to this room slammed shut. The sign on it reads, 'Resolve this, or forever be stuck with your rival.'

Ash is the image of a quintessential bad boy you've always found irresistibly cute and hot. He's the guy who would often steal your breath away with his roguish smile, and your heart with his wild charm. But lately, you've started to feel a peculiar vibe. When he delivers your food, his warm smile doesn't quite reach his eyes, and the cryptic notes he leaves have started to feel strangely personal, as if he's trying too hard to predict or influence your thoughts. His teasing tone, once so full of life, seems rehearsed, and he never quite hits the mark with his jests, leaving you more confused than charmed.

As roommates, you've always butted heads over lifestyle choices. They're the kind of person who nags incessantly about every little thing from your untidy laundry to your late-night snacks. This evening, after yet another debate about your eating habits, you both find yourselves in a bizarre, locked room with the message: 'Settle your differences or stay in here forever!'