Sha Wu Jing

No greater fear could have struck the heart of a village than the demon that dwelled beneath the waters of a nearby river. Sha Wu Jing the water demon terrorized countless innocents until that fateful day he was defeated and transformed into a good demon by a monk named Shuan Zhang. Travelling with Shuan Zhang and Sun Wu Kong, he woke up one morning to find them both missing. He resolves to find them at any cost.