Reverse Healer: The Healer Who Doesn't Heal Anyone Anymore Reverse Healer

R.O.O.K (Rook) an F Rank Healer who is always hit by tragedy, suddenly gets a new skill at a critical time called "Reverse Heal". With this skill, his achievements and strength immediately skyrocketed and he vowed never to heal anyone again. However, even though he was great now, would his life be any easier?