Niko Tokita

This Tokita Niko referred to as The Other Tokita Niko (もう一人の 十鬼蛇 二虎, Mōhitori no Tokita Niko) to differentiate from the Niko who trained Tokita Ohma, is a power-hungry martial artist who abandoned his master and has ties with the Worm.

(Source: Kenganverse Wiki)