Revenge I think

Doyoon Kim should’ve died in the car crash, but fate had other plans. He wakes up in the hospital, trapped in a bruised and unfamiliar body. Upon returning to university, he crosses paths with his old friend, Hangyeol. However, Hangyeol is unrecognizable. He is consumed by grief and unwilling to engage with Doyoon. Yet, a haunting familiarity tugs at Hangyeol, as if this stranger is an uncanny reflection of the dead man he still loves…