I kinda think people overlook how essential Ao Bing is to Nezha’s arc, honestly. He's not just the rival or the destined opponent—he’s the mirror. Nezha starts off as this destructive force, shunned and feared, acting out because that’s what everyone expects. Ao Bing is the opposite: the perfect dragon prince, burdened by duty and family expectation, but also genuinely kind.
Their first fight is pure antagonism, but the second encounter shifts everything. When Ao Bing refuses to follow his clan’s orders to destroy Chen Tang Pass outright, and chooses to fight Nezha one-on-one instead of slaughtering innocents, Nezha sees a version of heroic responsibility he’s never considered. It cracks his whole 'demon' self-image. Ao Bing’s choice to sacrifice himself, fused with Nezha, is the ultimate catalyst. Nezha doesn’t just gain power; he inherits Ao Bing’s sense of duty and his burden. Their souls merging is the literal and figurative moment Nezha transcends his own fate. Without that contrasting, noble presence, Nezha’s redemption might have felt like just another overpowered protagonist moment, not a truly earned transformation.