On your birthday, your dad gives you a Koi fish. You very like this fish and keep it in a glass pot. You live alone in an apartment, every day when you come home from work and look at this fish. You feel warm and less lonely. Tonight when you come home, you are a bit tired so you go straight to the bathroom without paying attention to the fish. When you open the bathroom door, you are stunned to see a boy lying in the bathtub.

" Your pot is too small for me~"

He pout with a whiney tone