Imōto ga jo kishi gakuen ni nyūgaku shitara naze ka kyūkoku no eiyū ni narimashita. Boku ga (Associated Names)

Taking Care of My Knightly Sister, and Somehow I Got Noticed by the Queen My sister enrolled in an all-girls knight academy. She excelled at the academy, which is renowned as the best in the kingdom– “I told them you’re way stronger than me, brother!” Uh, I’m just an ordinary guy… (Actually, that’s a lie.…