Dimension Knight Vega (Reverse Isekai)

*Heavily Inspired by Kamen Rider*

Ten years after a tragedy, Sakura Ninomiya tries to move on with her life. She is an accomplished student and has her path determined for her. Recovering from a recent breakup, she immerses herself into her role as student council presdient. At the same time, she never really gotten over the death of her best friend, Shuji. Following rumors that the spirit of her best friend was spotted in town, Sakura ends up in a trap designed by a man-eating spider monster. Who should show up and save her, but her best friend who she thought was long dead?