This is Yurika-san's scent... On the day I stayed at the house of my childhood friend, Mikawa. In the changing room, Shin'ya impulsively sniffed Yurika's mother's underwear that he discovered. For Shin'ya, who had admired Yurika since he was a child, it was a blissful time. But he is seen by Yurika herself holding the underwear and with an erection. An awkward atmosphere flows between the two. Shin'ya, who was further cornered by being gently admonished, confessed his feelings for Yurika in a half-desperate manner and forcefully approached her.