Avarion Book 1: The Jade Dragon

After losing his sensei to a criminal organization known as the Jade Dragon, a vengeful young martial artist join forces with a group of vigilante devas, a vast species of superpowered creatures whose leader he rescued and is after the organization as well. Together, they set to find out the Jade Dragon plans and put an end to them. Little did they know, the Jade Dragon was led by a powerful avarion, a demigod-like entity created when a human and a deva permanently fused their bodies and spirits.