Mashin Eiyuuden Wataru 2

After defeating Doakudar and returning to a peaceful life on Earth, Wataru is called back by Ryujinmaru. A new enemy, Dowarudar, has seized Seikaizan, the seven-star mountain system that sustains the rainbow over Soukaizan. If all seven stars lose their light, darkness will swallow the land permanently.

Wataru sets out once again with Himiko and Shibaraku, traveling from one star realm to the next in Ryujinmaru and battling the forces that have occupied them. New allies and rivals join the journey, but restoring the rainbow means overcoming an enemy even stronger than the one Wataru defeated before.