Chō Mashin Eiyūden Wataru: Another Step

Sōuzaikan is a large mountain, divided into many layers, where a great many people live peacefully. However, one day, a villain named Warumonda and his gang appeared, seizing control of Sōuzaikan and shattering its peace. Legend says that when Sōuzaikan is threatened, a savior will appear from another world, and just as was foretold, a boy named Wataru Homurabe has appeared. Wataru must travel to the peak of Sōuzaikan with his companions Sakuya and Aragoto, and using the power of the mech Ryūjin...