The Konomori family was living a peaceful life when Kikuchi, who had repeated his third year of college and was running out of time, moved in next door. The honest but clumsy Kikuchi received support from the couple, Ai and her husband. However, Kikuchi fell for Ai from the moment they first exchanged greetings. One day, while invited to dinner out of goodwill, he pushed Ai down. Seeing Kikuchi's subsequent guilt and regret leading him to abandon his studies and even deteriorate physically, Ai left a letter, lied to her husband for the first time, and stayed over at Kikuchi's place...
