Heyi Shengxiao Mo - Chapter 12.2: As It Turns Out

An anime otaku who has traveled to the world of full-time hunters, in order to live well, he can only keep getting stronger all the time, burying the strong one after another. Your withered life will be continued by me.

- Description from novelbuddy

Estaria, the Goddess of creation and eradication. The daughter of the God of destruction and the Goddess of life. Her father has been dead ever since she was born, and her mother disappeared without leaving a trace. In desperate times, as she grew old, she decided to bring her father back to life. But she had no idea where her father was. So, with nothing else to use, she thought of just recreating him through reincarnation. But the reincarnation process needed a woman whose body was strong enough to host the reincarnated vessel. With no options left, she crafted smaller deities using her own fresh and blood. Many of them failed. But one whom she named Nanako succeeded bearing a child she then named Hajime. Yet Hajime wasn't exactly what she expected. Because he possessed dual souls from two different people who died simultaneously in another world. But she was unaware of them due to one of the souls having fragments of his memories from when he was still alive in his past life. The other soul had completely forgotten everything, but bit by bit as the individual called Hajime journeys this new world, the memories of the other soul would start to retain giving him split personalities.

This novel is also known as A Stay-at-home Dad's Restaurant In An Alternate World

There is a very strange restaurant in the City of Sin.

Elves and dwarves must share a table, orcs are strangely well behaved, dragons are only welcomed on the small square in front of the restaurant, and the demons must bring their own stool.

This strange restaurant with their strange rules continuous to attract a long line of customers.

“This place serves the best food! The chef of this restaurant is a genius!” Some of the guests in the restaurant left glowing reviews. But these guests have a word of warning for other guests, “No matter what you do, never, never attempt to kidnap the boss or try to ‘eat and run’. You will die.”

A cute little girl stood near the door, and demanded in her tiny voice, “You have eaten the food, now pay up, or I will beat you to death.” The five-meter tall dragon suddenly felt a chill running up its spine.

- Description from novelupdates

When Su Jiu dies on her eighteenth birthday, she transmigrates into a novel about painful love and becomes an adorable four-year-old child.