One day, Hirofumi ends up staying overnight at the Mihara household. Seeing the grown young man, Sakiko feels a flutter of excitement, as if going on a date again after so long, her heart racing. While shopping that day, his presence stirs her emotions, building up her pent-up desire until she indulges in masturbation. At that moment, Hirofumi suddenly appears, catching her off guard. Shocked and overwhelmed with shame, her face turns bright red. She lets him sit beside her and places her hand on his tense crotch, leading to an unexpected turn of events.