Iwaki is the man that competes with Haruma Yuuki, one of the candidates for the next leader of the Rinja. He leaves his weak team and knocks on the door of the Kobura where he encounters the man who once in the past successfully lead the COBRA to become as powerful as the Rinja....The last episode 'Dark Reverberation' now begins, pursuing the blood lineage of the Rinja and the Kobura!! This serie is the Yoshida's Arakure Knight third serie (The sequel of Arakure Knight: Koukou Bakusouhen)