Ayako, the beloved aunt, is asked by her sister's family to look after her nephew Kazuya while they're away on a trip. Reuniting after a long time, Ayako and Kazuya spend their time reminiscing about the past, filling the void left by years apart. As Kazuya finds himself unable to suppress his growing desire for his beautiful aunt who has kept her stunning figure over the years, his emotions overflow and he can't help but make a move on her.