In a future era following the original Yatterman series, Leopard resides with her family and caretakers on the outskirts of the flourishing Yatter Kingdom. Unaware of her connection to the notorious Doronbow Gang, Leopard's world changes when she stumbles upon a hidden mural featuring Doronjo, Boyacky, and Tonzura. Shockingly, her guardians reveal their lineage as descendants of these infamous outlaws, explaining the banishment from the hero's domain. Initially rejecting her heritage, Leopard finds herself at a crossroads when circumstances compel her to embrace the role of a villain for a righteous cause, challenging her resolve for a new sense of justice.