Kashima Yuugo, the owner of a small cafe who leads a quiet, uneventful life, has one unusual habit that sets him apart from everyone else. He has a habit of masturbating on his balcony. Living on the top floor corner apartment, with empty rooms on either side and below, he felt completely safe and relaxed. But one day, his secret habit is discovered by Saeki Ryota, a good-looking young man who just moved into the apartment next door... 「I'm going to climax while being watched... completely exposed...」