Gokuaku Reijou: Reijou ni Tenseishita Saikyou Rouhei wa Skill "Madan" de Musou Suru

Kiran was the strongest soldier, but he lost his life in the battle against the Demon Lord. He accepts a proposal from the Goddess and is reincarnated as the daughter of Duke Heikelaar…? This is an adventure story where Lady Kikka, born with the memories of an experienced warrior, regains the "magic bullet" skill from her previous life, and rises to become a leader. Her gallantry will attracts people to join her. (Source: Comic Spira, translated)