
Story
My sister enrolled in an all-girls knight training academy. Even at the kingdom's most prestigious academy, my little sister, a brilliant girl, excels in every subject... "I'm telling you that my brother is so much stronger than me!" No, I'm just an ordinary guy.......? (*That's not true. He just doesn't realize it yet.) Because of that boast, the top knight of the school challenges me to a mock battle. (*The strongest knight of the school realized their difference in strength in an instant.) Now make sure you cool down properly after exercise!
Synopsis via AniList (English).
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