In recent times, there is no time for relaxation, as Yo and his friends try to save their former opponent and current ally, Tao Ren! Ren's father has very strict views on the path his son should take, and his recent disobedience has cost him a visit to the dungeons of their family castle. However, Yo's influence has begun and has an impact on Ren, who now has the support of his friends against the dark forces of his father. Tao's castle, however, is a mysterious place, full of monsters and unspeakable terrors. Will friendship be able to overcome the dark path of Tao?