国家を守護する聖剣士に任命されたケイルは、自らの聖剣を選ぶ儀式で、人の姿をとれる『魔剣』を目覚めさせてしまう！　魔剣は、その強大すぎる力ゆえ、国から危険視されるヤバい存在だ。 けれど、自分を主と慕う可憐な魔剣＝美少女リーシュを前に、ケイルはただただ思った。 「かわいい…すごくかわいい!!!!」 かくしてケイルは、魔剣ちゃんを幸せにするべく全力を尽くすことを決意するが――!?

Kale, who has been appointed as a holy swordsman who protects the nation, awakens the “magic sword” that can take the form of a person in the ceremony of choosing his own holy sword! The magic sword is a dangerous existence that is regarded as dangerous by the country because of its overwhelming power. However, Kale just thought in front of the pretty magic sword = beautiful girl Leash who longs for herself as the Lord. “Cute … very cute !!!!” Thus, Kale decides to do her best to make Magic Sword happy.