Friends of both sexes challenge themselves to escape from a locked room in the 10th installment of the Solid Situation AV! The escape method is simple: just collect 20ml of semen! A female university student, in order to escape, gives her male friend a handjob, uses a masturbation toy, performs oral sex, and has intercourse! But there are no condoms... "It's okay to go raw since we're going outside?" Despite such words, the young couple, carried away by their passion, ends up having unprotected sex! And because it feels good, they do it multiple times! The friendship between the sexes doesn't stand a chance against sexual desire! Sex solely to satisfy each other's desires!