At the end of the game, Mao defeats Aurum in battle and then goes to see his dad. Proud of what Mao has become, the Overlord gives Mao the title of Overlord and moves onto the afterlife. Mao then promises to be an even stronger Overlord than his father. However, in the Almaz ending, Mao's dad grants the title of overlord to Almaz (despite the fact that he's human). Spoilers end here.