As the fiercest knight, Lady Leo already has her strong, beautiful hands full with quests, goblins, and foes! But nothing compares to the trials and tribulations of love, where Foolie the romantic expertly keeps her blushing. He's not the only one, however, who has their eyes set on the toned adventurer… Will his love be strong enough to fell a demon lord, or compete against the town heartthrob, or even dispel Leo's misunderstandings?!

Leo Cornelia, also known as the Undefeatable Holy Blade, is hailed as the strongest knight in all the land. It's precisely this strength that has barred anyone from treating her like a proper woman before⁠—that is, until sorcerer Houli Dent comes along! He professes his love to Leo out of the blue, but how will she handle being treated like a lady for the first time in her entire life?

Leo's top spot as the strongest knight means rivals from near and far will arrive at her doorstep looking for blood. With every battle, she slips back into the cold, ruthless blade she always used to be. However, when she is summoned to fight in a tournament, her competitors are shocked to find a newly blushing, daydreaming Holy Blade! Behind the scenes, however, Foolie is hard at work dodging the advances and misunderstandings of other beautiful women!

Leo Cornelia has dedicated her entire life to the battlefield. There is no demon she can't slay, no challenge she can't handle-at least, not until that confounding halfwit mage Foolie Dent confesses his love to her. Nothing feels farther from her than long-discarded notions of femininity and romance, but this annoying but dependable new friend might just be the key to opening the heart she closed long ago.

Ever since the tournament, Leo hasn't been the same! She's giggling and flirting with Foolie, while Anri is in the front lines fending off goblins alone. While the team wonders what could be afoot, Foolie is visited by one of the strongest mages he has ever known: his former teacher. Without warning, his old mentor whisks him away, but it's for good reason-his body is nearing the limits of his magic use, and he may suffer dire consequences if he continues…

When Leo and Foolie are discovered by Leo's father, the two are tasked with eliminating the elusive Demon Lord. Astonishingly, the past mishaps and misunderstandings between Helga, Fleur, and the duo have ended up strengthening the bonds between the group! The two women become formidable allies to the Holy Blade in battle, but Foolie notices something strange… Upon closer inspection, the Demon Lord has a familiar face…or rather, a familiar set of abs. Has Leo Cornelia, mightiest of all knights, finally met her match? As blades clash and clang, Leo loses sight of Foolie, whose reckless magic usage is finally catching up to him. Will the power of love-ahem, abs-be enough to save the foolish mage? FINAL VOLUME!

Despite herself, Leo has started growing closer to Foolie. He might be as annoying and muscle-obsessed as ever, but he's come to her aid time and again, and more than anything she enjoys his company. But with new feelings come new insecurities, and when a shady fortune teller implies that her future holds heartbreak, she finds herself lured into a trap.