Satsuki and Kanna are two sisters living in a secluded village in the mountains. As the older sister, Satsuki, is working on the topic of "kitsune and superstition", they encounter a girl possessed by a kitsune spirit.

Shuu Ito, 39, is still an active bicycle racer. His wife Kazumi, 35, is a housewife in her prime. Both Shuu and Kazumi have grown up, but the love of Japan's strongest couple still runs hot. And then there are the five handsome young men who hang out around the Ito household. They are new bicycle racers who look up to Shu as their mentor! The Ito family only grows stronger, as the new chapter of *Keirin Yarou* begins! (Source: Shogakukan, translated)

Omitsu, an adopted daughter died of illness. On her deathbed, she asked to her parent to no adopt any child after her death. But a few years later, Hinako is adopted by the family, and strange events start to occur...