パート3 友達同士の素人大学生男女がキスだけで唾液100ml溜めるまで出られない密室からの脱出に挑戦！！

In this creative amateur production, young Japanese students participate in a unique social experiment. They are tasked with a kissing challenge in a locked room until they reach a specific volume of saliva. It is a playful and interesting watch for fans of amateur content.