High school boy Harumi Natsume has a crush on his biology teacher Koba Haruka. In order to spend more time alone with Koba, Harumi purposely failed his biology tests so he could attend Koba's supplementary c...

America in the Roaring 20s. On the surface, it's a positive, peaceful time after the violence of the Great War. But lurking in the shadows is a dark element ready to snatch that peace away. Sister Rosette Ch...