List of Buso Renkin Characters - Hayasaka Twins

Hayasaka Twins

The Hayasaka twins attend the same academy as Kazuki Muto. When they were children, the two constantly played the "marriage" game with their mother. They were always told never to leave the room they were in and to never go outside. One day, their mother died overnight. The Hayasaka twins were unaware that she was dead and only came to a realization of this when her body began to rot. Upon seeing this, they tried to leave the house for help but found that the door was chained and bolted shut. Trapped in the apartment, the twins nearly starved to death but were rescued by police who had come to arrest the mother. It was later revealed that the woman was not really their mother but an unbalanced woman with whom their father had had an affair and who had kidnapped the twins when the father had ended the affair. While in the hospital, they overheard their real parents arguing and claiming that the children were no longer theirs. Not wanting to be separated, the twins ran away from the hospital to live together on the streets. Eventually they were found by Dr. Butterfly and Moon-Face and recruited into the LXE, where they decided to work for the homunculi there so that one day, they too could become homunculi and live together forever. Their lives changed when they met and later fought against Kazuki Muto and Tokiko Tsumura. They eventually parted ways, Shusui opting to train with his old kendo teacher; Ouka says they were relying on each other as emotional support, and have to stand alone.

Watsuki stated that a part of the Yukishiro siblings, Tomoe and Enishi, from Rurouni Kenshin, were used in their design and personality.