From Exiled Rebels Scans:

Always-surrounded-by-friends Ryuunosuke and lone wolf Kagetora are leaders of opposing teams and they have a cat-and-dog relationship. One day, they end up doing erotic things–

“This can’t be. I’m sharing a secret with this guy.” There are also plans to move far away, and things get complicated. As these two who cannot seem to grow up consider their friends, hometown, family and their feelings for each other, they take their first clumsy steps into love.

This volume also contains the story of adult love between a younger manga artist and his Do-M editor! Even though his body was held captive “for the sake of producing ero manga”, the manga artist discovers a pleasure switch that even he didn’t know about…