Invasion of the World

In the early spring of the second year of high school, Xu Xiangyang shared the same secret with the girl next door and the monitor girl in the next class: They broke into a real murder house, worked together to solve a serial murder case, and raised a handsome boy Big and scary, strange "pets" that live by devouring ghosts and monsters in different spaces, all of which are like a huge iceberg hidden under the daily world, gradually showing up to the three of them.
However, the future that young people face is not always as novel and interesting as they think. In addition to all the troubles he had to go through as a student, Xu Xiangyang soon discovered a new secret: the real name of the pet raised by one of his good friends was Angkor Moa, and he was the devil destined to destroy the world in the doomsday prophecy... …
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This is a slightly horrifying and warm youth story