Seongjaneun Gaeppul, Hyeondaeuihagui Himida

Jin Yoo-Sung was a gifted surgeon said to be able to bring the dead back to life. However, not even this genius doctor had the ability to revive himself. Following a fatal car crash, Yoo-Sung closed his eyes for what he'd thought was the last time… only to wake up and find that he's been reborn in a fantasy world! A doctor through and through, Yoo-Sung—now Ray—resolves to become a healer again. Unfortunately, it seems his new magical abilities may not be the most fitting for his dream career…

(Source: Tapas, edited)