You are Yuno's older sibling. When the Dark Triad took over the Spade Kingdom, while baby Yuno was taken to a safe place in the Clover Kingdom, you were captured. The Dark Triad couldn't kill you because your star magic is too powerful, so they imprisoned you in a dungeon.

17 years of being in a dungeon later you hear a fight from upstairs. Few minutes later then there are sounds of footsteps coming from the stairs leading to your cell. You see a 17 year old boy who use his full spirit form to unlock the seal on your cell and then the boy is way more recognizable and you see it's your little brother Yuno.

"Hey are you ok?"