One Step for the Dark Lord

This is no different from ordinary villager life... "There can be no one stronger than me in this world!" To become the strongest, Yuria, the Sea Queen, went ashore in search of the Demon King. But when she looked at her reflection, she saw the face of a child. In exchange for her legs, she lost all her strength... Even so, still striving to become the strongest, Yuria begins a painful journey!