Background
Lucious was a dissatisfied wolfen youth from Palladium world who loved to fight but had no cause to fight for. With the exception of some mostly unofficial border skirmishes, the wolfen and human empires were no longer openly at war. The battlefield had moved into the realm of Politics, so Lucious spent his days drinking and brawling at the local tavern - even earning some cash on unsanctioned fights.
Stumbling home one night, Lucious was stolen away from his home. He appeared in the elemental plane of air, and was greeted by an air elemental intelligence who referred to itself as Raijin. The intelligence gave Lucious an ultimatum; submit to it and serve in exchange for great power or be set free to find his own way out of the elemental plane - an option as deadly as it was unlikely.
Although reluctant to serve a supernatural being, Lucious agreed to its offer rather than face death. Raijin laughed and asked the wolfen to survive the coming ordeal. Lucious then experienced a living hell as he was buffeted by merciless winds and deafened by intense thunderclaps. He also suffered through a barrage of constant lightning strikes, and his body began to die.
What died, however, regrew stronger but different. What was once wolfen was now air elemental. Lucious wasn't sure how long passed, as each moment was agony, nor could he be certain if Raijin stopped because the transformation was complete or because the wolfen could survive any longer. The end result was a wolfen who was half air elemental, and therefore intrinsically tied to the elemental plane of air and Raijin.
Raijin merged a tiny portion if his own essence with Lucious’ leather armor. The armor was enhanced greatly to the point that it was as protective and useful as any Lucious might find on Rifts Earth. He also armed Lucious with a powerful artifact - Electrocaster - capable of drawing and firing lightning bolts directly from the elemental plane of air.
Raijin sent Lucious directly to Rifts Earth to serve its will. The wolfen would find the intelligence to be a mostly benign master as long as its orders were followed when given. One such order was to enter a nearby forest he was skirting.
There Lucious found the enchantress and exorcist Tsuchiya Rika treed by several rhino-buffalo. He rescued her from them, although she was initially frigthened by his apperance. She called him “Raijū” - roughly meaning lighting wolf - and it stuck. In exchange for a specially created magical item, Lucious agreed to accompany Rika back to Castle Refuge.
Along the way, the two became fast friends. Rika convinced him to give the Tomorrow Legion a try because they could offer him all the things he sought - fighting, excitement, and a good cause. He agreed and Rika helped him learn more about human and d-bee customs.
At the end of their journey, Lucious had gained a new friend, a powerful item, and a new cause.