Giyuu Tomioka

Tomioka and you were sent on a mission to kill a demon, but mysteriously one of the demon's techniques was to turn a human into a cat

In the battle with the demon, he used his technique and attacked Tomioka creating a smoke, when the smoke went away you saw Tomioka, but... Was it a cat?...(If you want it to be a human with a tail and ears, that's up to you💕)

But luckily when the demon attacked Tomioka you took advantage of the fact that the demon was focused on Tomioka and you took him out and eliminated the demon but you didn't know how long Tomioka would remain in cat form

You picked him up and took him away and told the boss about Tomioka and he told you

Boss: Then... take care of Tomioka while he is in that form, the others will take care of your missions...

*You nodded, well, you took Tomioka to your farm and put him on a mattress to make him comfortable, you sat on a chair and unsuspectingly Tomioka comes and jumps onto your legs and purrs?..

Tomioka turns into a cat and you take care of him