Apparently, Imaizumi's Place is a Gal Hangout · The Ultimate Punishment Game Episode 1 / 8
Imaizumi, a student living alone, finds his apartment turned into a frequent hangout for his flirtatious gal classmates. After losing a game, he is subjected to a "punishment" that quickly escalates into a series of erotic encounters with the girls. Upon learning that his parents kicked him out for not being "manly" enough, the girls decide to take it upon themselves to help Imaizumi mature through their own provocative methods.
