The story revolves around William, an aristocratic family's progeny with rare intellect. One day, his uncle lost his possessions after his business failed. Fearing that his family's name has been tarnished, William returns home and searches with his family's butler for anything that can be converted into cash. A search of the premises yields an underground room left by an ancestor. In the room is a magical seal, and William unintentionally summons a devil. The summoned devil tells William his name Dantalion, and reveals that William is the designator who can choose the acting ruler of the demon world. (Source: ANN)

Maria is a powerful young witch living with her two familiars in medieval France during the Hundred Years' War against England. As the war rages on and the innocent get caught in its destruction, Maria becomes fed up with the situation and begins using her magic to try and prevent further conflict in hopes of maintaining peace. However, her constant intervention soon attracts the attention of the heavens, and the archangel Michael is sent to keep her from meddling in human affairs. The divine being confronts Maria, and he forbids her from using her powers, issuing a decree that her magic will be taken if she loses her virginity. Though she is now labeled a heretic, Maria adamantly refuses to heed Michael's warning and continues to disrupt the war between the two nations. But as the Church begins plotting to take away the witch's power and put a stop to Maria's interference once and for all, her peacemaking may soon come to an end. [Written by MAL Rewrite]

Mei Ayazuki is just your ordinary, everyday high-school girl. That is until one night, when the moon is full and red, she’s transported through time to the Meiji Period by Charlie, a self-proclaimed magician. She ends up in a strange, Meiji-era ‘Tokyo’ where the existence of ghosts is accepted. Led by Charlie, she finally arrives at the Rokumeikan. There, waiting for her to arrive, are the historical figures Ougai Mori, Shunsou Hishida, Otojirou Kawakami, Kyouka Izumi, Gorou Fujita, Yakumo Koizumi, and Tousuke Iwasaki. Whilst interacting with these men, she discovers she is a Tamayori - someone who can see ghosts - a skill that is highly valued in the Meiji Period. Due to these powers, her relationship with the men begins to change… As she gets to know these handsome men in a new era she just can’t get used to, a love begins to grow within her. Will Mei be able to return to her time? What will become of her love - a love that crosses the boundaries of time and space? (Source: Honey's Anime)

The story imagines if Japanese historical figures such as Queen Himiko, the warlord Oda Nobunaga, and samurai Sakamoto Ryouma were cats. (Source: ANN)