Based on Idea Factory's romance adventure game: Yukimura Chizuru has come to Kyoto looking for her father, a doctor who has gone missing. While there, she witnesses a fight between an Oni and the Shinsengumi. Taking her into custody, the Shinsengumi debates on what to do with Chizuru when they discover that she is the daughter of the doctor they are also looking for. The Shinsengumi then takes Chizuru along on their search after the missing doctor, from adventures to adventures.
Didn't think I'd ever give an anime 5 stars overall, but this is an exception. Great samurai anime. Animation is flawless, one of the two best-animated series I've found on here so far. Love the colours too! The characters are mostly bishounen but each with an individual personality. Story moves steadily, rather fast-paced (22 episodes covering the time frame of several years) but is well to follow and has NO FILLERS. There's history and politics, but you don't need too much background to be able to understand it. Action and sword fights. Supernatural influences. Mystery. Humour. Friendship. Romance. It's definitely worth a watch :)