The Boy Who Was Driven Down the Mountain

A talented young man whose spiritual power was crippled was expelled from the school. He actually has a hidden identity. He was once a fragment of the first demon king in the demon world. But now that he was reincarnated, his former identity made him very distressed. He didn't want others to think that he was just a fragment of the former No. 1 Demon King. He was an independent individual, and he didn't want to be a stand-in. Now that the abyss is in trouble again, and the abyss sealed by the first demon king thousands of years ago appears again, where will he go? Can you successfully guard the abyss this time?