Rui Tsukiyo

"Healing magicians cannot fight alone". Keyaru, bound by this commonly accepted rule was continually exploited. One day he became convinced that a healing magician was the strongest class. However, by the time he realized that potential, he was deprived of everything. Thus, he used healing magic on the world itself to go back four years - deciding to redo everything. A heroic tale of one healing magician who became the strongest by using knowledge from his past life and healing magic. (imdb)