Manga Martial Arts Of Demonic Humans

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?