Shokudō has lived in Deepfields for 10 years, according to Shiina  He is one of the 5 elite members of Deepfields and is known all around the area. He is the only member that has ever won against Corry and Kasai  ( The co-founders of Deepfields ).

He was left in the forest with his brother when he was 10. His parents didn't want to keep him due to his 'bad habits'' he would often catch squirrels and kill them, then he would bring the squirrels to his parents whilst also being covered head to toe with blood. His brother would throw rocks at the neighbors kids because ''the voices in his head told him to do so''.

Yoru

Yoru is Shokudō's superior/Best friend. We don't know much about him and Shokudō's relationship, all we know is that they work together and are seen together a lot.

Yasim

Yasim is Shokudō's other best friend. Yasim has actually seen Shokudō's face before, and only he and Yoru will see it. They like to go to the bar and get some drinks with Shen yun and Eirian after work. Yoru and Shokudō are both assassins, though Yoru is more of a protector, he doesn't like to kill people for no reason, While Shokudo just kills people for fun.

Shen Yun 

Shen Yun is known all around deepfields for being the barman and the body disposer. He's known Shen Yun for 10 years