"Find Eraf's hidden son and you'll be free." Jeriko, a girl who grew up normally in a rural village. One day, she finds out that her father is the hero, Eraf. She even got the artifact Dragon Slayer Sword, and her life changed completely as the new owner of the sword. Jeriko wants to pass her seat and live a normal life. Dragon Slayer Sword, a sword with an ego, tells her that Eraf has one more son. Son of the Magic Tower, Saensi Daisy Eldest son of the Rich Stars Association, Rosen Stars Princess Lillier's son, Magno Noupei. I have to find him amongst the three candidates.