Haja Kyosei G Dangaiou

A mysterious explosion on Futagami Island begins a new chapter in the Dangaioh mythos!

Led by the evil Professor Katou, a band of warriors calling themselves the "Tartarus Knights" have begun their campaign to lay waste to the world by way of a small research station on Futagami Island.

Katou's victory seems almost certain until he encounters an advanced fortress guarding the island.

From it, a group of three humanoid robots are launched—Dangaioh!