Mahou Chandora

Mahou Chandora (まほちゃんどら), lit. Magic Chandra, is a comic series about a girl named Chandra who possessed Rayna to achieve dominance over her tormentor. The series featured two issues, one guidebook, and one wiki.

Plot
Chandra Stevens is an insecure magical outcast. When she arrives at school, she is bullied, raped, and nearly killed by Fitz Juané. The next day Chandra discovers she can possess people, and when Fitz comes back with a shotgun, she possesses popular girl Rayna Salvado, and uses Rayna’s magic to kill Fitz, before dying herself.