Juliette Contzen, a seemingly indolent princess overshadowed by her accomplished siblings, spends her days in leisure—napping, reading, and practicing an unusual hobby: slicing falling raindrops with her blade. When a wandering adventurer stumbles upon her during one such training session and evaluates her combat prowess, he suffers an immediate mental collapse at what he discovers. The kingdom's coffers rapidly deplete, pushing Juliette toward an unwanted marriage arrangement. Determined to preserve her comfortable existence, the princess abandons her idle ways and flees under cover of darkness. Armed with a singular goal—revive her realm's dwindling wealth—Juliette embarks on an unexpected adventure that will challenge everything she thought she knew about herself, wielding strength far beyond what anyone imagined possible.