As an omega, Kei desires to wed a wealthy, handsome, and benevolent alpha. To attain this, he hones his abilities to be an ideal spouse for his future mate. However, his physique is distinctive due to the failure of drugs that hinder the onset of an omega's heat on him. Consequently, he turns to his childhood buddy Tsugitsugu, a beta, whenever he experiences an episode of heat.
The question is, how sustainable is Kei's association with Tsugitsugu?