When the King's Heart burns down, a being that transcends the fate of this world will arrive on this land! The boy from Earth, Sung Sihan, brought down a tyrant and saved the world. However, his happy ending was cut short when everything was taken away from him, and he was banished back to Earth. After 10 years of gritting his teeth, he prepares for his return... The hero who has already saved the world once re-enters Terranora!