During summer vacation, RiKo (Yuki Yoda) returns home and enjoys a day of doing nothing. Riko's childhood friend Yuki Oishi also comes to visit after hearing about Riko's return home, and they decide to have a BBQ together. While the conversation is lively, Riko discovers a plastic model and reminisces about her family, and something shocking happens...! Confused, Riko unconsciously heads to the Yajima model store...
