Past: Wingul the Revolutionary
The war escalated to challenge King Merad's throne, of which Gaius seized control to become the new king. His right-hand man through numerous skirmishes, Li Ying was granted the name slash title "Wingul," after the wings of the Chimera. Auj Oule began to thrive under the new policy of rewarding its people based on their merits, not their station of birth. But there was one problem with the administration: Wingul was still lousy at the sword and possessed a physique not unlike that of Steve Rogers before his serum of beefy muscles. He was skinny as all get-out, making his body all the more likely to sail through the air after being struck by a giant mallet – which did, in fact, happen.
Ortega, an outcast of Kitarl tribe for his unusually large frame, sought Gaius in his grief stricken quest for revenge. Being ever protective and dedicated to his duty, Wingul threw himself between Ortega and Gaius with his sword ready to be drawn. It took one swing and Wingul was down for the count, cursing his weakness and raging at Gaius' decision to take in Ortega under his wing.
Following this humiliating defeat, Wingul dabbled in Merad's final attempt at winning back the throne: boosters. He was smart and intelligent, but he wasn't strong enough to stand at Gaius' side. If the experiment succeeded, he'd have that power to support his king – or slay him if he went astray.
Nils: You're King of Long Dau. You can't expect me to accept the king selling his body.
Wingul: That was the past. Now I'm no more than a man who dedicates himself to Gaius. [...] I want power.
Nils' statement about Li Ying selling his body to Gaius was realized as Wingul endured hours of pain after mere seconds of booster exposure, which gave him some beefy muscles not unlike Steve Rogers' super serum with a generous helping of Super Saiyan hair makeover. From then on, Wingul became a formidable foe on the battlefield, with two stipulations: 1) in the booster state, he could only speak his mother tongue, and 2) shave off his lifespan with each usage. On the flip side, his participation in voluntary torture allowed booster research to advance into less harmful territory.
Reassured in his authority and power, Wingul eventually came to accept Ortega – now Jiao – as a precious comrade and later welcomed Presa and Agria into the cohort. Together, the four of them became known as the Chimeriad, the strongest and most trusted subordinates under Gaius' command.
But Wingul still bore a sliver of connection to Long Dau through Nils, who'd moved on from grieving Long Dau and taken up work at the Labari Institute to care for the orphans undergoing booster experimentation. A year before Milla Maxwell's appearance, spies attacked the Institute and Alvin – ever the life ruiner – gave Nils a mortal bullet wound in the ensuing chaos. In a desperate attempt to revive the old playmate who'd been like a brother to him, Wingul promised to revive the Long Dau tribe; however, Nils preferred that the children be taken care of instead. With Nils' passing, Wingul gave up his last connection to Long Dau and became immersed in his obligation toward Auj Oule.