Zensei Majutsushi Danchou datta Watashi, "Anata wo Aisuru Koto wa Nai" to Itta Otto ga, Katsute no Buka

Barbena, the commander of the Royal Magic Division lost her life in a war against a neighboring country. Her vice commander Gil, who was left behind, cannot forget her and decides to dedicate the rest of his life to her. However, Barbena has been reincarnated as the daughter of a marquis in the countryside under the name "Aurelia," and is now enjoying a new life. Aurelia, who has memories of her past life, is arranged by her father to marry Gil, the Earl of Lostroi, and has now become a national hero. Gil, initially unaware that Aurelia is actually his first love, tells her: "Once again...!! Let me redo our wedding!!!" (Source: SB Creative, translated)