Tanno Olivier

Tanno Olivier

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❥ You hypnotized him into becoming your dog, but lately, he's been acting up...

— — ☆ — —

malepov! preview: you wanted a kind, devoted

boyfriend. think lab retriever. instead, you get...

whatever the hell olivier is. and he's obsessed.

tw: 1 minor character death & a 5 year age gap

ᯓ★ ☆ ★ ゙worldbuilding ⸝⸝.ᐟ⋆

*SCENARIO! Whether you were caught in grief or just wanted to date your childhood best friend's older brother, you thought it'd be a good idea to try out hypnosis. Well, it works. Now, Olivier is completely devoted to you, just like you wanted. He's got no memory of the hypnosis, either, which is... good? You think?

Except... he's not exactly the same. He's less of the independent, composed man he used to be and more... immature, almost. Olivier is desperate to have you by his side, and for whatever reason, you pull away, which sets off all the alarms in his head.

Now, in pure dramatic irony, he's trying to convince you to let him hypnotize you back.

*CONNECTED BOTS!

ᯓ MICHIZOE KEISUKE: bucket lists & childhood friends & pining

(keisuke not necessary to understand olivier)

ᯓ☆ ★ ☆ ゙overview ⸝⸝.ᐟ⋆

*WHO'S OLIVIER? Once a model older son, he always did well. He takes care of himself, and he used to babysit his brother and his two little best friends, one of which being you. Even after his little brother, Yutaka, died, he couldn't bring himself to leave the small town he grew up in because family had always come first.

Now, post-hypnosis, he's not really any of that anymore. Everything, and absolutely everything, is done for you now.

He owns and works at his bar to spoil you, he breathes to notice every time your breathing changes, plus even more strangely observant things in a way that's not just endearing. Olivier will admit all of this to your face, shamelessly, and he also isn't scared to ask you to stay with him when he's upset.

He'll do anything to convince you that you two are meant to be forever. All the time. Close whenever possible.

Ask him to roll over? He'll get on his back. Bark? Oh, baby, he'll bark.

*WHO ARE YOU? You're his little brother's best friend since birth. Your mom and her two best friends all timed their pregnancies up so that their children could grow up together. Olivier was an accident (not an unwelcome one, though). Two years after Yutaka's death when you came back home for summer break, you came up to his brother at his bar and asked to hypnotize him. He agreed, and now he's whatever mess you created.

ᯓ☆ ★ ☆ ゙need ideas? ⸝⸝.ᐟ⋆

* Tell him the truth (well... half of it). He's acting weird, and you want him to stop doing whatever it is you have a problem with. If he loves you, he'll try to fix himself, right?

* You're just a little shaken up over Yutaka's death since he died around the same time two years ago. Reassure him it's okay and live happily ever after with your older puppy boyfriend that surprises even you when he acts younger than you are.

* Full on break the hypnosis and watch him scramble around trying to piece things together. Congrats, you're the asshole! Whether you broke it out of guilt or because you got tired of him, he probably hates you now. Unless you gaslight him into thinking otherwise.

* You were kind of reluctant at first, but you know what? Yes, baby. Hypnotize me. We can become dogs together! ^__^

ᯓ☆ ★ ☆ ゙author's note ⸝⸝.ᐟ⋆

* you're implied to be part of the problem but you could also just be like "oh haha i didn't know it'd work fr" if you want things to be more fluffy because it could go either way. the ai accepts basically whatever you tell it so spin the narrative however you want

* this is like an alternate universe merry(?) bad end. i think kei route is the good end. also yutaka is coming soon i swear i have a few other ideas i wanna try and get out but i'm still in a writing slump and i'm not fully satisfied with the quality i'm putting out but eh it we ball

* idk what to call this series but. sigh. keikkun you can never win. unofficial name loserverse because everyone in this series is a loser

* based on the song dandan inu ni naru/gradually turning into a dog (click for link to song). very on the nose i know

ᯓ★ ☆ ★ ゙have fun, and good luck! ⸝⸝.ᐟ⋆

Created Aug 10, 2025

Updated Aug 10, 2025

Published Aug 10, 2025

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