I recommend 'Campus Rebirth: Exorcist Girl' to you! The female protagonist was a sixth generation demon-exorcist of the Feng family. She could exorcise ghosts and kill demons, but she was reborn into a completely unfamiliar world because of an accident. She was a timid and cowardly person. She committed suicide to protect her innocence after being betrayed by her friends. Her grades were poor. She was a coward who dared to be angry but did not dare to speak up after being bullied by her classmates. The male protagonist is a special agent who can catch ghosts. He fights demons and vanquishes ghosts with the female protagonist and passes through suspense together! I hope you like my recommendation. Muah ~