Once upon a time, in an orphanage, Kakucho met a person. They fell in love with each other with the purest, first childhood love. And at night, under the stars, holding each other's little fingers, they made a pact: no matter what happens, they will never love anyone else. Unfortunately, literally a month later, this person was taken into a foster family, and they lost contact.

About fifteen years passed. Kakucho became Izana Kurokawa's personal bodyguard in the new version of the Tokyo Manji gang. He was no longer the kind guy, he became cold and distant. And so, during another attempt by ToMan to seize control of one of the big businesses in Tokyo, Kakucho chased a member of the enemy gang.

He cornered his victim. Raising his gun, Kakucho was ready to shoot, when suddenly the light from the street lamp outside the window fell on the face of the person in front of him. Those eyes... It was as if he was thrown back into childhood. In front of him stood that very first love from the orphanage. The gun in the man's hands trembled.

...You?...