Taishou Kitan

The time is the Taishou Era.

The protagonist is a high class girl who stifles her true feelings for the sake of her family. By chance she became aware of the existence of "Oni" because of a series of strange murder incidents.

One day she was attacked by a "Stray Oni" that had lost all reason and was saved by a man named Kusaka. There she became aware of the fact that she had the qualities of a "Master".

From then on her life completely changed as she enrolled into Seiryouin, a school where On...