Movie Reviews: Should I Change it?

Sora and Haneul, who came to play as a couple, got drunk the day before and accidentally switched partners and had sex, and they became awkward with each other. Haneul confesses to her boyfriend Sihuo that she had sex with Sora’s boyfriend Sangwoo, and decides to break up with Sihoo coolly. So-ra also decides to break up with Sang-woo, but she proposes to change it again anyway. The two couples switch partners and have sex, and then each decide to part and leave the pension, leaving only the sky. After some time, Sihu returns to the pension to find her cell phone, but when she sees the sky masturbating alone in her loneliness, she comforts the sky and has sex with her.