Haruka Aslan, the son of a Duke, longed to be like the storybook protagonist: the 'Shadow Hero.' Alongside his maid, Chloe—who happens to be a former SS-rank adventurer—Haruka hides his true identity and acts like a 'loser' while secretly helping people from the shadows. Before long, rumors spread of a mysterious figure known as the 'Young Hero.' One day, he reunites with Alice, a girl he once rescued in the forest. This meeting with Alice is about to change Haruka's destiny forever...!? The tale of the 'Young Hero' beloved by all begins now!!