Ep. 21: Reishin fights the Masagami warriors while Kuro awakens as the third deity.

21

The battle begins between the two Masagami warriors and Reishin, and he is pounded in separate attacks of magma and ice. Keita and Kuro now understand that Reishin always sought to protect Kuro from becoming one of the three Masagami and contributing to the destruction of the world. With the aid of Akane's Thousand, Reishin unleashes an immense Exceed attack on the flaming and icy bodies of the two Masagami, destroying them. However, they begin to regenerate as Kuro awaken and she is revealed to be the third Masagami. With her powerful electrical energy, she joins the other two Masagami in attacking Reishin. Keita desperately calls out to bring Kuro her back to her senses, reminding her of their Contract. He succeeds in reaching her, and after they synchronize, she turns against the two other Masagami. The Masagami pair then attack Keita, but Reishin intercepts them. He makes one last powerful move against the Masagami, but he dies after draining all his Tera Energy. (Source: Wikipedia)