第 4 集: Isanami 帶領勇者們進入洞穴，卻遭遇 Hanzo 和 Okatsu 的伏擊。
2012年1月29日 播出
With Isanami's help, the braves discover a staircase to a cavern. Once there they are ambushed by Hanzo and Okatsu looking for the Kushimi Jewel. With Saizo injured and Kakei under Okatsu's spell, an unexpected wind comes to help. (Source: Wikipedia)