Children who live in hiding with superpowers, along with their parents who live with painful secrets of the past, face enormous dangers together.

Moo-kyung's past has haunted him his entire life. He eventually loses his job and family because of it, and suicide seems to be his only option.

Dae-gil has been skilled with his hands and has shown a strong desire for winning ever since he was a child. He will succeed his uncle and jump into the world of Tazza, risking his life in competition.