Shinya trembles with uncontrollable excitement upon hearing that Akari, his mother's beautiful and seductive best friend, will be staying over. His fantasies intensify as he begins living under the same roof as the voluptuous beauty. Overcome by desire, Shinya sneaks into the changing room, but gets caught in the act and is caught trying to peek at Akari naked. Seeing his reaction, she teasingly asks, "Are you really that curious about my naked body?" while Shinya can't take his eyes off her cleavage. Finding him adorable, Akari impulsively steals a kiss, sparking a deeper connection between them.