Zushiohmaru's backstory is explained as he inadvertently ran away from home when he chased a dog he loved. Professor Sumida, who was doing research on the SCM, found him and adopted him. One day, Sumida's colleague Sanegaya drugged him and stole Sumida's research leading him to quit his job as a professor. Zushiohmaru puts on the SCM to get revenge on Sanegaya, but he hasn't met him since...