The male protagonist Fang Chenglan, who was promoted due to an accidental rescue of a drowning princess, accidentally leaked his immortal energy while practicing martial arts one day, and accidentally turned a butterfly into a human form? It's just that this butterfly can't even speak, so it can only be raised from scratch. The two get along day and night, but only because...
I really don't know how to write an introduction. QAQ, just read the main text. It will be quite boring in the early stage. It will be fine when the heroine comes out later!