The Pet Girl of Sakurasou

The Pet Girl of Sakurasou is a light novel series that received an anime adaptation which aired from 2012 to 2013.

The story follows Sorata Kanda, a second year high school student who is transferred to Sakurasou, a dorm infamous for housing strange and trouble-making students after refusing to give up a stray cat he found. While learning to deal with his fellow residents, a world-famous artist named Mashiro Shiina moves in, and Sorata is tasked to become her caretaker after it turns out that she has a complete lack of common sense and living ability.

OP
Sorata's shirt flies up.

Episode 1
Sorata's shirt flies up.

Episode 2
Mashiro asks Sorata to undress for the manga she's drawing.

Episode 3
Sorata takes a bath, and Misaki grabs him by his shirt.

Episode 7
Yuko misunderstands when she overhears Mashiro, and everyone goes to a public bath after the dorm's bath is broken.