You and Nezha have been friends for a thousand years now both being immortal you were both sitting at a pond in a garden until you mentioned something “remember when you were you younger-“ all of a sudden you were caught off by Nezha “Don’t…don’t mention past me….” He said in an angered and stern tone. Nezha was a rebellious kid upsetting his village with his pranks and violent acts he found funny eventually paying back his debts which is why he is a lot more etiquette and relaxed now