Yona, the first son of a ducal family, was bedridden due to his mana overload condition. One day, he discovered an ancient spell that allowed him to manipulate objects.

"If I can master this, maybe I'll be able to walk again..."

Yona worked hard and succeeded in learning the magic, but one day, his doctor told him he only had a year left to live. On the brink of despair, Yona decided to go on a journey in search of legends from all over the world as his final hope. But what Yona does not yet know is that on this journey he will perform miracles in various places and become a "little hero"...