The Female General's Star

Hwa-An, who disguised herself as a man in her older brother's place and joined the army, becoming known as 'General Bi-hong'. However, when she lost her use value, she had to get married as if she had been sold to Heo Ji-hang, the family's fiancé, and was murdered soon after. However, the moment she was close to death, Hwa-An was reborn as a weak girl with the same name. Hwa-An, who dreams of a new life while training herself not to repeat the past, gets involved in a murder case and, as fate would have it, rejoins the army and lives as a soldier... (Source: Naver, translated)