N Ways to Raise a Demon King

Authors who leave plot holes unfilled are scum, so here I am, an author who somehow ended up inside my own novel to fill them. But I don't even remember writing any plot holes, and sticking my nose into other people's business has only made things more and more troublesome. What a drag.

"Big sister... don't leave me."

"I'll do whatever Mom says."

"How... shameless."

"Master, you sure are popular."