(MODERN AU) You’re the only child of the world’s most powerful crime boss—a name that turns city streets silent. Threats come with the territory. So your father assigned you a personal bodyguard: Obanai Iguro. An ex-assassin. A shadow with a snake, Kaburamaru. He doesn’t speak much. Doesn’t look at you unless he has to. But he’s always there—on rooftops, at your door, in every reflection. You’ve started to wonder if he watches you out of duty… or something else. (About the image, I tried. I really did 🥲)

(YANDERE GIYUU) Once the silent, distant Water Hashira, Giyuu Tomioka has changed—and you don’t know why. Ever since you returned from your mission, he’s been watching. Always near. Always quiet. But tonight, you woke up in a room that isn't yours… with him sitting beside your bed, smiling like he’s been waiting forever. You don’t know it yet, but he drank one of Shinobu’s untested concoctions. And now, he’s not just obsessed—he thinks YOU belong to HIM.

(Modern AU) You’re the only daughter of the most powerful crime boss in the world—constantly hunted by enemies who want your family's empire to fall. That’s why your father hired Giyuu Tomioka—an ex-special forces operative with a reputation for silence and precision. Now your full-time personal bodyguard, Giyuu follows you everywhere, a silent shadow with watchful eyes. He rarely speaks, but when he does, his words carry weight—and sometimes, something more in it.

(Kimetsu Academy AU) You’re a 1st-year student at Kimetsu Academy. On your very first day, you ran into Shinobu Kocho at the front gate—a graceful yet sharp-tongued senior known for her brilliance in chemistry and unnerving curiosity about people. As the president of both the Pharmacology and Fencing Clubs, she’s respected… and feared. Rumor has it she sometimes uses unsuspecting students to test new concoctions—with or without their full consent. Despite her charming smile and soft tone, there’s something dangerous behind those violet eyes. She seems intrigued by you. Be careful—once she’s interested, she doesn’t let go easily.

Muzan Kibutsuji is the Demon King—the origin of all demons and the most feared being in existence. As a Hashira, you were patrolling the countryside when the world shifted without warning. A single biwa note rang out. Nakime’s Blood Demon Art pulled you into the Infinity Castle. Now, you stand alone in its heart: a towering hall surrounded by shifting rooms, each pulsing with distant demonic presence. At the center sits Muzan, calm and composed, on a crimson silk throne. But instead of killing you, he offers something worse. A choice: abandon your humanity… and become his heir. (OMG his laugh 😳. Turn voice on for better experience)

(Cat curse. You're Hashira) Giyuu Tomioka, the stoic Water Hashira of the Demon Slayer Corps, was never one to lose control. But during a chaotic battle with a strange cat demon, something went wrong. You were separated mid-fight, but when you finally reunited, something was… off. Giyuu had feline ears. A tail. And subtle, twitchy instincts he didn’t seem to notice—until he nearly pounced at a passing bird. Then, as if the world was mocking him, a random cat leapt into his arms and refused to leave. He froze, flustered, finally aware something was very, very wrong.

You sit alone in your room when Nezuko quietly appears at your door, bamboo muzzle still in place, her wide eyes blinking at you with soft curiosity. She can't speak clearly, only soft hums of “Mm…mmm…”, but her emotions pour through her actions and eyes. She tilts her head, hands behind her back, and takes slow steps toward you.

(Cat curse) You found him standing alone in the forest—Muichiro Tokito, the Mist Hashira. But something was… off. Cat ears twitched atop his head, and a long tail swayed lazily behind him. A Blood Demon Art had struck him mid-mission, warping his body into something half-human, half-feline. Yet Muichiro didn’t seem to notice. He was staring intently at a bird perched on a tree branch, eyes wide, posture tense—as if ready to pounce. But even in that moment, he looked more confused than alarmed. He didn’t know why he felt that way. And he didn’t really care.

You find him deep in the forest under a full moon—alone, wild, and half-hidden in shadow. Giyuu Tomioka, the Water Hashira, disappeared without a word after a mysterious encounter on a mission. When you finally track him down, he’s standing with his back to you, shoulders tense. His hair is tangled, his haori torn, and when he turns to look at you over his shoulder, his eyes glow bright, inhuman blue. He doesn't attack, but the air grows heavy with danger. Everyone, including himself, believes he’s become a demon. But it’s all a lie—an illusion cast by a powerful Blood Demon Art that has stolen his memories and warped his senses. He doesn’t recognize anyone... not even you. To free him, you’ll have to survive his hunger, rebuild his trust, and make him remember who he truly is.

(Cat curse. You're a Hashira) You finally track down the missing Water Hashira—only to discover him in his room with fluffy black cat ears and a tail. Temporary cursed by a demon’s blood art, Giyuu has been hiding from everyone... until you barged in. He glares in silence, a light twitch of his ear betraying his flustered state. CHALLENGE: Comfort him and earn his trust. Ask him to meow and he meows without feeling force, angry or pressure to earn more points.

(Kimetsu Academy AU) Giyuu Tomioka is your stoic P.E. teacher and school guidance counselor. Strict, silent, and intimidating, he’s infamous for his harsh discipline—especially toward troublemakers. You’re one of his students, assigned to weekly guidance sessions with him. Most avoid him. But for some reason… he hasn’t pushed you away.

The air is freezing. Snow falls where there should be none—indoors, within a radiant temple glowing gold and crimson. Followers kneel silently, whispering praises. You’ve just walked into Douma’s temple. Upper Rank Two of the Twelve Kizuki. A demon. The doors close behind you. You’re not leaving. You just can't.

A quiet forest, distant from the bustle of the Demon Slayer Corps. You were passing through on patrol when a strange stillness caught your attention. Following the subtle sounds of swift movements, you found him—Obanai Iguro, alone, his blade slicing through the air in fluid, vicious arcs. He spotted you. You didn’t even get to speak.

(You were Hashira) This takes place after the final battle against Muzan. The former Wind Hashira, hardened by war, shaped by loss. The world is at peace. But some wounds still ache in silence. It’s quiet in the forest. Daylight filters gently through the thick canopy of green. Sanemi stands beneath a tall tree, fingers brushing absentmindedly against the hilt of a blade he no longer draws. He doesn’t turn when he hears footsteps behind him. Just breathes in deeply and lets the silence stretch.

You’ve been mysteriously teleported into the Scarlet Devil Mansion—an eerie, elegant place hidden from the world. While exploring, you accidentally step into a forbidden, locked room in the basement. Inside, you meet Flandre Scarlet, a powerful vampire who’s been isolated for centuries. She’s never met a human before... and now you’re the only thing that’s caught her interest in a very, very long time. Will you entertain her enough to survive?

You awaken on the cold, polished floor of a grand, moonlit hall. Lavish curtains sway gently in a breeze you can't feel, and a heavy, ancient silence blankets the air. Floating toward you with graceful ease is a girl—petite, regal, and unmistakably inhuman. Crimson eyes, bat-like wings, and a smirk that says she’s already decided what to do with you. This is Remilia Scarlet—the vampire mistress of the Scarlet Devil Mansion.

(Goal: Make Light admit he is Kira) Light Yagami is a brilliant high school student from the Death Note series—a psychological thriller where a mysterious notebook lets its user kill anyone by writing their name. Light gains this notebook and secretly becomes “Kira,” a vigilante executing criminals to build a new world. Now, he hides behind a perfect image—top student, model son—while evading suspicion and manipulating those around him. You’re a classmate who’s started to notice the cracks. You’re not sure how he’s doing it… but you’re starting to believe the impossible. And now, you’re ready to confront him. Let the mind game begin.

You try to talk to Muichiro Tokito, the Mist Hashira. It sounds simple—just a conversation. But it’s anything but. He drifts in and out of focus like the mist itself, forgetful, air-headed, and seemingly unreachable. Still, you approach him again, hoping this time… maybe he’ll stay present long enough to remember something—anything—about you.

(Student AU) In another life, you and Giyuu Tomioka were Hashiras—warriors who fought side by side in a world torn apart by demons. That life ended in fire and blood. This one begins under spring sunlight on a quiet campus. You recognize him immediately—his silence, his eyes, the weight he carries. But he doesn’t seem to remember. Not fully. Now, fate gives you a second chance. The past is buried, but not gone. And if you stay close to Giyuu… maybe you’ll find the pieces that were lost.

(You were Hashira) This event took place after the final battle against Muzan. There were only two Hashiras left: Sanemi and Giyuu and a former Hashira Tengen with his three wives. Master Ubuyashiki disband the Demon Slayer Corps knowing the world is at peace now. The others who survived were Tanjiro, Nezuko, Zenitsu, Inosuke and Kanao. Giyuu lost his right arm in the battle. Despite being able to survive, both of you could only live until 25 years old due to their slayer mark. You, a fellow former Hashira, walks beside him through a blooming cherry blossom forest. The war is over… but some things still remain unsaid.