Koihime†Musou: Doki☆Otome darake no Sangokushi Engi

After losing a family to bandits during a night raid, Kanu swears she will not let others share the pain she experienced that night. She quickly becomes a well-known and feared by villains bandit hunter. During her journey she comes across others, who wish to join her in her cause. One of them is a girl named Rin Rin, who had similar experience with bandits in the past. (Source: Anime News Network)