Love-Biting Discipline: Flipping

Don't get me wrong, "dog".

Wakamatsu, a popular young trainer at a members-only BDSM club, has his secret discovered by Sakuraba, a member of the same club.

Sakuraba, who has been secretly wanting to have Wakamatsu, proposes a deal to him:

"I wanna whip you"...!?

This is the story of Wakamatsu switching from being a sadist to being a masochist.
Regarding the timeline, this occurs just before the events of the previous work.

Highlights include more whipping and verbal teasing, as well as the penetration of a virgin with a sex chair, and of course, a lot of sweetness.