Ryner Lute would rather nap than fight, but after Roland Empire's war against Estabul costs him his classmates, the empire's new king Sion Astal sends him hunting for the relics of a legendary hero instead of letting him rest. Ferris Eris, a sharp-tongued swordswoman assigned to keep watch over him, needles Ryner at every turn even as the two get pulled into a spreading curse threatening the empire. This manga adapts the light novel series' opening arc chapter by chapter.