Ume, Megumi and Minoru are childhood friends who attend different schools. One night, Ume's parents go on a trip and they get together to spend the night. May and Megumi both have crushes on Minoru. The three have a good time and drink whiskey with May for the first time, but get drunk quickly. After getting drunk, Mei is so mesmerized by Minoru's story of virginity that she ends up falling asleep on the bed. The two of them...