One day, while preparing dinner, Yuuka, a mother, casually looks at her son's crotch as he sleeps in the living room. Then, she notices that her son's crotch, which should be asleep, is bulging out as if it's going to burst... Her husband is frequently away on business trips, and they no longer have a nighttime relationship. Perhaps due to her daily sexual frustration, Yuuka can't help but fantasize about being entangled with her son in the kitchen...