My Cheat Skill [Resurrection] Revived Me, and I Ended up Resurrecting the Ancient Demon Lord's Army.: The Strongest Healer That won't Let Anyone Die

Licht, a young man who has the special ability, "Resurrection," makes his living as a member of an S-Rank Adventurer's Party. However, the king, who feared his power, ordered his comrades to betray him, and in the end, executed him in an unfair manner. But Licht, who was fortunate enough to be revived because of his own skill, now swears to carry out his revenge on humanity...