Kintoki, Sakatano

From a young age, a girl was disguised as a boy to shield her from the enemies of her household. While maintaining this disguise, Kintoki's cousin, Princess Ouni, falls in love with her, unaware that Kintoki is actually female. Kintoki flees from her cousin's affection and becomes the target of her scheming uncle's pursuit—until a noble samurai warrior, Lord Raiko, rescues her. For the next few years, Kintoki lives under Lord Raiko's protection, learning swordsmanship. Eventually, Kintoki joins Lord Raiko and his subordinates, becoming a warrior tasked with defending the city from bandits.