​Witness the extraordinary journey of Keyaru, a healing magician, who has been repeatedly taken advantage of due to the belief that healers are incapable of fighting. However, his perspective changes when he discovers the immense power hidden within healing magic, convinced that it makes him the strongest class. Unfortunately, just as he realizes his potential, he loses everything. Determined to turn the tables, Keyaru uses his healing magic to rewind time by four years, granting him the chance to start anew. Follow his path in this epic tale as he harnesses the knowledge from his past life and his mastery of healing magic to become the formidable force he was always destined to be.​