Yuma is going on a ski trip with her boyfriend, Takeda, with the intention of having their first intimate experience together. However, her best friend, Hotaru, unexpectedly touches her in the bath, claiming it's "practice for H," leaving Yuma unable to resist. When she finally tries to get intimate with her boyfriend, things don't go as planned, and she finds herself awkwardly facing the new school term. Meanwhile, Takeda begins to suspect that Yuma is hiding something from him. Yuma struggles with the question, "What is true love?" while Hotaru continues to meddle. Watching them is Hotaru's boyfriend, Fujiwara, who wears a mischievous smile... A sudden twist! Secrets between the two high school girls finally come to light!?