Using his summer vacation, Atsuya visited his aunt Mikazuki's house for the first time in a long while. He couldn't directly look at Mikazuki's alluring body, which was different from his childhood memories. Finding his innocent reactions amusing, Mikazuki teased him mercilessly... That night, Atsuya accidentally caught sight of his aunt and uncle having sex. The next morning, when Atsuya blushed recalling the events of last night, Mikazuki confronted him, saying, 'You were watching yesterday, weren't you?'
