Shizuku-chan, a freshman in high school, is resolute to find a companion. She acknowledges that her fondness for Kairi-kun, her older sister's lover, is futile. As her sister conceives a child with Kairi-kun, Shizuku-chan knows it's time to move on. Although Kairi-kun is a pedagogue at her school, she attempts to shift her focus onto someone different. But with Kairi-kun's daily presence, it's no easy feat. Eventually, she becomes entranced by Hatori Sora, a widely sought-after male student in her cohort.
