The adventure begins centuries ago in ancient Japan, with a sacred race of warriors named the Tengu. Their king was able to move from our dimension of reality to another, finding a certain device called the Arashi Hane. He became immortal in Tengudou and returned back from that dimension, with the object. The Tengu fled their homes with the aid of the Arashi Hane and entered the realm of the Gods, as the raw forces of nature was violently destroying parts of Japan at the time. Only the king remained on earth destined to lose the Arashi Hane and roam through history, having to hide his identity and eventually infiltrate a military installation named M.I.7 in present day America. Elite American army section Stormwing 7 is assigned to finding and retrieving this mysterious Japanese artefact. An ancient map is found and used towards leading Stormwing 7 to this legendary object, which is accredited with having the power to transport people to another dimension, named Tengudou. The adventure continues on with Stormwing 7 finding the device and entering this unknown environment. They are met with challenges of advanced technologies and the Akai Akuma, an alien species in the act of invading Tengudou. Stormwing 7 managed to escape back to their reality and re-entered with a platoon of soldiers. A battle ensues with the aliens and help is given from unexpected quarters. The battle is taken into Tengunese space where the ancient Tengu in their crystal spacecraft aids Stormwing 7.
