Reincarnated as Raiden Mei (Danmachi ff)

Rei Murasaki, a 17-year-old girl who will graduate. She has a happy and pleasant life with a healthy body, a kind family, and her girlfriend. But that all changes after she answers some strange questions and finds her heart broken and aching after seeing her girlfriend cheating on her. Faced with a sense of betrayal and despair, she runs ignoring the surroundings until she is finally hit by a truck-kun and dies.