The Sasayama family will be performing a lion dance at the neighborhood association's New Year's event. While struggling with the unfamiliar dance, the son Yoshio becomes excited by his mother Nozomi's seductive appearance. He ends up touching her body in front of his father Koji, who is watching the practice. Then, when Koji goes out on an errand, Yoshio attacks Nozomi, who is dressed in a festival costume.