Syo, an ordinary office worker, was forced to leave his father's house because he hated the yakuza with all his heart, despite the fact that his father is the head of the Miwamura criminal gang.
One day, he reluctantly attends a festival organized by the boss of the enemy group "Niyodani", where he falls in love with a beautiful blond young man with a scarlet peony tattoo. What he saw so intoxicated and delighted Syo that he, without hesitation, offered Moz his hand and heart, but, as it turned out, the young man belongs to the enemy yakuza clan, and is the lover of the boss Niyodani!
On the same night, Moz, using a master key, escapes to Syo, and from that moment their cohabitation begins, full of adventures and dangers.
[This work also contains other stories by the author.]