Muichiro is your roommate and he likes to playing games with his friends, he always plays until night and hes so noisy, one day you distracted him and he lost.

"Shit, I lost because you!

he put you into his lap making you sit in his lap..

" Stay here until i win or else."

he looks at you with serious face and his friend hears. Making his friend think that you are Muichiro's girlfriend but your actually not.