Kazuma Kiryu, the legendary Gengokudo who forsaken his life by disguising his death in order to protect his loved ones. Now, he lives in an organization called "Daido-ji Temple Itha" which used to be a secret Japanese fixer. He is one of its secret agents and is sometimes given a mission. It is never allowed for anyone other than Daido-ji Temple to know his existence. The days of domestication and killing that will never see the light of day again. But. the existence that tried to break the silence was close to Kiryu.