Qa-Len

Qa-Len was the Empress of the Solar Empire during the Lightning Wars, she was the ancestor of the current Empress: Lei-Qo.

Lightning Wars
Qa-Len was one of the many rulers of the Solar Empire, trained to led her forces to fight the forces of Evil by her mother just like all the generations of rulers before hers. By the time she was the Empress of the Solar Empire, the Ōtsutsuki fell from the heavens, a nation of former monarchs of the Multiverse. She feared that the Ōtsutsuki had taken refuge, due to the previous conflicts from the stars.

However, the world was being invaded by the Iron Legion of Xylvania, a nation of tyranny and conquest led by the ruthless Lord Ferrok in a attempt to conquer the world. The conflict was known as the Lightning Wars. As the war went on, only the Western Frontier and the Tundran Territories did not fell to the power of the Iron Legion, the Anglo Isles, altrough not conquered, were heavily damaged during the war. Eventually, the Iron Legion attempted to invade the Solar Empire with no avail, this led to the Solar Empire's invasion on Xylvania.

Qa-Len successfully cut off the Iron Legion from the rest of the world through the use of naval blockades and denying the Legion use of its massive airforce with numerous anti-air vehicles, infantry, and frigates. The Empress then led a full-scale invasion of Old Xlyvania to destroy the Legion in their very homeland. Despite the intial success of her invasion, Qa-Len suffered numerous defeats once her forces gained a foothold. Again and again, she would attempt to destroy vital aspects that fueled the Legion's warmachine only to be thwarted by Lord Ferrork's commander when he sensed the two unnamed children's unique ability.

Lord Ferrok took pity for them and decided to raise them as their own due to their genetic bloodline. After Ferrok's death, due to the unnamed disease, Qa-Len was saddned by so many sacrifices made by Ferrok's pity and terrified of the ultimate power, the Triforce and that Ferrok passed the leadership of the Iron Legion, which will eventually evolve into Heaven Tail.

Legacy
She died sometime after the Lightning Wars but she passed the torch to her daughter and eventually her future successors to protect the secrets of the Solar Empire and lead their forces if evils like the Iron Legion appears and attempts to conquer the world.