Konyaku Haki Sare Suterare Rurashii node, Gunjin Reijou Hajimemasu

Celestia, the daughter of a prestigious family, is confronted by her self-proclaimed “heroine” stepsister with a prophecy: "You, my sister, will have your engagement broken, be abandoned by your father, and end up in a convent." Determined to avoid this disastrous future, Celestia apprentices under her grandfather, a formidable general on the frontier, and resolves to live a strong life as a soldier. …But somehow, she ends up catching the attention of the visiting crown prince?! ___ [Original Web Novel](https://ncode.syosetu.com/n5798gy/)