Cactus Tears's manga / #dom/sub(7)

In this world, in addition to being male or female, people are divided into two "dynamics": those who yearn to control and those who yearn to be controlled. Kippei's a regular office worker who's always hated being the latter. But, suppressing his desire has stressed him out to the point of making him sick. Finally, he goes to the doctor, who tells him the last thing he wants to hear: he needs to find a partner and get some release! Kippei signs up for a matchmaking program, only to get paired with a guy who happens to be his hot coworker Sota Otomo.

"Senpai, I'll dominate you to the marrow of your bones." Sumio Tachibana, an orthopedic surgeon (a resident), has spent his days as a sub controlling his desires to be dominated and controlled. However, he doesn't have a designated Dom, and remaining in this state will damage him both mentally and physically. Because of this, Sumio decides to visit a SUB-only club... There he meets his old high school junior, now a yakuza, Wanizuka Itsumi [DOM]. Since he doesn't have a designated dom he urges, "Let me become sempai's dom." ?! [DOM/SUB Universe] a trying story of a jealous young yakuza x a surgeon who really just wants to be spoiled?!