Suzuki is always hanging out with his good friend, Kawasaki. One day, Ai, who is unrequited love, came to Suzuki's house. Kawasaki says, "The three of us will have a study session." That night, Kawasaki and Ai stay at Suzuki's house. In the middle of the night, Kawasaki, who should have been sleeping next to her, is gone. When he looks for Kawasaki, he sees him doing lewd acts with Ai in the next room... Contrary to her neat and clean look, Ai was a female student who was full of sexual curiosity.
