Redo of Healer - S01

When Keyaru gained his powers as a Hero who specialized in healing any injury, no matter how severe, it looked like he was headed for a great future. Instead, he was met with immense suffering. He endured years of what felt like endless, hellish torture and abuse. His healing skills let him secretly collect the memories and abilities of the people he treated, which slowly made him stronger than anyone else. But by the time he reached his full potential, it was far too late. He had already lost everything. Determined to get his life back on track, Keyaru decided to cast a powerful healing spell that rewound the entire world to the time before his horrible fate began. Carrying the anguish of his past, he vows to redo everything to fulfill a new purpose: to take revenge on those who wronged him.