[Crossover] When Arima Daddy Became a Big Eater

This is the result of my grievances after watching Tokyo Ghoul. Since I couldn't find a story where Daddy Arima survived and became a ghoul, I had to fend for myself. Here's the premise:

Kishou Arima died by suicide, thinking it was all over. But when he opened his eyes, he was still alive, and had even become the one-eyed ghoul the Washuu family had long dreamed of! What's more, he had gone back several years in time!

So the biggest problems facing him are that he has no ID, no health insurance card, and has turned into a middle school student.

Daddy Arima: So, should I pretend to be my own son?

Note: No CP. The female lead's job is to keep setting Daddy up.

P.S. Today I saw one of my favorite authors, Quan Quan, say on Weibo that someone had borrowed her idea. I want to clarify here: I've watched both seasons of the anime, but haven't finished the manga. The main reason is that the manga is a bottomless pit, and this dumb author is still down there waiting for updates. I may have been influenced by Quan Quan's writing, but this story is basically based on the anime. Consider this a warning. If I've accidentally used the same idea, please let me know.

That's all. October 26, 2017, 11 a.m.

Also, this story is an experiment in a different writing style, so updates may be slow.