Comments of Martial Arts of Demonic Humans

The main character is actually a side character in his own life. And the secondary character is the main character in his and her life but not because of romance. Because she is one of those annoying, stuck up characters who has no thoughts about other peoples' feelings.

One day, a girl appeared out of nowhere claiming to be an exorcist and turning Liu Yanhui’s regular school life upside down. Ever since his troubles began to continuously plague him, his parents were critically injured by demons and even his childhood rival became an exorcist's target. Eventually, the city he has been living in is at risk due to his presence there… How will a young man with a demonic parasite growing in him survive this world?

cool girl. gotta learn how to pay for the foods she ate tho lolol