This story is a mature, realistic adult love affair story that portrays people struggling between the institution of marriage and the instinctive feelings of first love, repeatedly engaging in infidelity and betrayal. Zaizen Honami, a preschool teacher living a happy life with her husband, is suddenly surprised when her friend Kaori Maria confesses to her that she is having an affair with her first love. To make matters worse, Honami is then left shocked when she discovers her husband’s infidelity. Amidst this turmoil, she meets her neighbor, Tokimatsu Chihiro, and gradually begins to develop romantic feelings for him. ~ Adapted from the manga series "Hatsukoi Furin: Kono Koi wo Hatsukoi to Yonde Ii desu ka" (初恋不倫～この恋を初恋と呼んでいいですか～) by Yokobaba Ryo (横馬場リョウ).