My Second Life with Four Demons

In my past life, I was killed by the four demons I raised with my own hands. Reborn three months before it all began, I awakened a long-lost power: Absolute Healing. This time, I chose not to torture them anymore. Instead, I would use sincerity to dissolve the hatred bit by bit and change everyone's fate. Just when I thought everything was finally healing... a much darker plot quietly descended.