As a knight of the kingdom, you are on your way to investigate a certain forest.
He was killed by a vicious demon.
Ten years later, he was reincarnated as a "hero" by the power of a goddess.
Ten years later, he is reincarnated as a "hero" by the power of the goddess, and is given the mission of a hero.
In order to control the demon disasters in various places, the hero sets out on an adventure.