AKIRA

From wikipedia:Usagawa Rinne, a normal female high-school student, was spending happy days with her lover, Sakaki Guryuu. However, the peaceful days shattered suddenly, On the night of Sakaki's birthday, Sakaki witnessed Rinne get killed after her ey

From AQUA Scans:"In an accident at the meat factory, the heiress was heavily injured. Guiltily, I agreed to her request, but this very same request have let me enter into a wonderful life..."