This is the scent of Yukari-san... On the day he came to stay at his childhood friend Mikawa's house. Shinya, upon discovering Yukari's underwear in the changing room, impulsively sniffed it. For Shinya, who had admired Yukari since childhood, it was a moment of bliss. However, he was caught by Yukari herself, holding the underwear and being erect. An awkward atmosphere flowed between them. Pressured further by her gentle admonishment, Shinya, half-resigned, confessed his feelings for Yukari and pressed her forcefully.