Fantasy, Kill Everyone with a Small Notebook

The original owner of the body was weak and incompetent. When bullied, he would only pick up a small notebook to keep accounts. The male protagonist was reborn, awakened a powerful force, and decided to avenge the previous owner of the body. So he started to take revenge according to the small notebook. He held the small notebook and killed from the city to the outside, from the five realms to the eight wastelands, from the human world to the heaven. Killing and killing, he discovered that his mother was the saint of heaven, and he killed and found that his father was the king of the underworld. Killing to make all the ministers surrender, killing to unite the eight wastelands, and finally connect to the three realms and become the king of all ages. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.