Agnes, a witch who is the court magician of the kingdom and educator of the brave Kevin, sacrifices herself to protect the hero in the final battle against the Demon King, but avoids death by casting a reincarnation spell on herself. However, she is reincarnated as a three-year-old girl. She begins a new life as Rita, an ordinary girl in a remote village, but her magical power remains unchanged, as she repels magical beasts she encounters in the forest with her magic arrows. Meanwhile, Kevin, upon his return, believes Agnes is alive and decides to search for her. The legendary witch and the hero who saved his country. Will the day ever come when their lives intersect again?