Konyaku Haki sare Suterare Rurashii node, Gunjin Reijou Hajimemasu
婚約破棄され捨てられるらしいので、軍人令嬢はじめます
A young noblewoman, Celestia, receives a prophecy from her stepsister, who identifies as the "heroine," predicting the end of her engagement, her father's rejection, and her eventual retreat to a convent. As these events begin to unfold, Celestia seeks to change her fate by becoming an apprentice to her grandfather, a prominent military commander stationed at the frontier. She commits herself to a life of strength and discipline as a soldier.