City Ranger: Kunlun Chronicles

When he was ten years old, Lin Chen was struck by lightning and became a "fool" known throughout the city. No one knew that an immortal sealed his Nine Yang Thunder Vein that night and left a message: "When you are eighteen years old, come to Kunlun to find me." Ten years later, when he came back from the mountain, he was still the dull and dull Ah Chen during the day, allowing others to laugh and push him around. But when night falls, he transforms into silver lightning and wanders through the darkest corners of the city.