Tachibana of Mutsumi Yato Kogyo, whose leader was assassinated. He is glared at the work of the hostile organization Konan Service, but his big brother Kurosaki is well rounded up with his traces as bait. Masa and Jun, who are the thugs, ignore the unsuccessful executives and aim for the Konan service leader who was the chairman of the Mutsumikai, but failed! Jun is captured and killed. Kurosaki tries to secure Yato Kogyo in exchange for Jun's life.