Yoshino, attending a PTA meeting for his son's new school term as an officer. There he meets Mari-chan's mom, Ayano. By chance, the two are appointed as officers. Yoshino is instantly drawn to Ayano's friendly and elegant demeanor. However, that was just her facade; Ayano's true nature is a guilty woman who loves other people's husbands. One day, while working in the gym storage room, the conversation turned to love. Ayano, reminiscing about her youth, suggested to Yoshino, "How about we kiss here?" with a lewd proposal. Yoshino tried to evade, saying not to tease him, but Ayano cut him off and forcefully took his lipsー From that day on, until my son graduates the following spring, summer, autumn, and winter (one year), I will be drowning in intense PTA meetings with Ayano…
