Basically, it's kinda like a samurai/drama anime of sorts with a teenage girl named Chizuru as the main hero
She basically went on a quest to find her missing father and was almost killed until the Shinsengumi (one of them in particular being the character in my avi) came in and save her. They then take her in (at first, it was more like they kidnapped her since they were going to kill her at first until she told her story to them) and in exchange for her life being spared, she has to stay with them and learn how to defend herself (they give her a sword)