Wait, I've literally read a novel with the same characters, but different origin. The other story was from the immortal realm, and this one is from hell. The teacher, mengmeng, the so-called cultivator. Some of the names are even the same... I dropped the novel cause it got a bit much, but it was a decent enough first 50 chapters. Such a shame, I like the idea of raising kids in wuxia. I wonder if there's any good ones