Zebra

One of the "Four Heavenly Kings" he is in jail for an as of now unknown crime. He is said to be the best at disrupting IGO's food order. Although not officially seen, he is described as the most savage of the Four Heavenly Kings, as proof of this he single handily caused all the scars on Match's body. It was later revealed the person who captured Zebra is Yosaku the Saiseiya, along with Teppei's assistance. He, and the other Four Heavenly Kings, were trained by Ichiryuu, the President of the IGO.