Single mother Tsubaki harbors affection for Momoka, a well-behaved honor student who gets along well with her daughter. One evening, while Tsubaki is preparing dinner for a sleepover study session, Momoka approaches her in the kitchen and confesses her lesbian feelings. She forcefully slips her tongue into Tsubaki's mouth, sharing a deep, passionate kiss. After dinner, Momoka sneaks into Tsubaki's room and brings her to climax repeatedly with wet, sloppy cunnilingus and fingering. That night, their intimate relationship deepens intensely, and from then on, they continue satisfying their carnal desires daily, strengthening their bond further.