This summer has been filled with humid, sweltering days. Kenichi, a cram school student living alone, couldn't bear the heat and opened his window, only to discover the beautiful married woman, Asahi, living in the apartment across from him. From that day on, peeping at Asahi became Kenichi's daily routine. One day, he witnessed Asahi being assaulted by a repairman she had called for her air conditioner. Without thinking, Kenichi threw something out his window to intervene. Later, Asahi invited the brave Kenichi to her room, saying 'I want to thank you'…
