18화: 세이류가 그룹을 상대하지만 헤이가이를 물리치고 리더가 케이코를 노린다

As the four travel deeper within the castle, Seiryu, the third Saint Beast, appears. When Byakko weakly arrives and asks for Seiryu's help in fighting against the quartet, Seiryu freezes and shatters him to death after declaring him a failure and a disgrace to the Four Saint Beasts. Hiei chooses to battle Seiryu afterward. Although Seiryu seems to have the advantage, Hiei reveals that he has been merely toying with him, and easily reverses all of his ice attacks. As Seriyu attempts to respond, Hiei cuts him down with his sword. Meanwhile, the leader of the Saint Beasts learns about Yusuke's relationship with Keiko and decides to target her with the Makai-infested civilians in an attempt to weaken Yusuke's determination to stop him from carrying out his plan. (Source: Wikipedia)

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