"What is this smell?" The source of the sweet and sour scent filling the house was his mother, Ayano. Ayano, who works hard during the day, seems to have been tired and fell asleep on the sofa as is. "Even with her socks still on... Mom, wake up, you'll catch a cold." As Shunya approaches to wake her up, a fragrant scent tickles his nostrils. I want to smell it more. Following his surging desire, Shunya touches Ayano's sweaty and lustrous body.