S1·E2 The Black Inferno Armor

Ryo and Seiji are sent flying into the savannah by an attack from Mukara, a brown-skinned boy clad in a black Shining Emperor. Mukara wants to fight the white Shining Emperor, but... Meanwhile, Shin, who has doubts about fighting, has a fierce confrontation with Shu, and decides to part ways with the armor, throwing the armor ball to the bottom of the lake!