Mitsuki Nakae

A century has passed since King Kyle of the Orvelia kingdom destroyed the fierce demon lord Angmund, restoring peace to the lands. Now in a time of peace, the apprentice knight Kasel enjoys his life without worry. His fate begins to change, however, with news of demon appearances infesting the neighborhood. Guided by a wise man, Kasel finds friends he can rely on and sets off on his mission to seek a holy sword, capable of slaying his newfound enemies.

The show takes place in Ogikubo, which is the name of the specially designated area in space in the Milky Way where Earthlings and aliens can live together. Luluco is a female middle school student who lives with her father, and no matter where she is, Luluco is a common, "super normal" girl. As she is living her normal life, one day the mysterious transfer student ΑΩ Nova abruptly appears before her. That meeting will change Luluco's fate.

After losing her grandfather, Aoi—a girl who can see spirits known as ayakashi—is suddenly approached by an ogre. Demanding she pay her grandfather’s debt, he makes a huge request: her hand in marriage! Refusing this absurd offer, Aoi decides to work at the Tenjin-ya bed and breakfast for the ayakashi to pay back what her family owes.

Many years ago, a Great Civil War ravaged Japan, leaving the country fragmented between two regions: Kansai and Kanto. In Kansai, a group of six Akudama carry out missions given to them by a mysterious black cat, while evading the police. But a dangerous journey is about to unfold when a civilian girl becomes twisted into the Akudama's way of life and witnesses their criminal drives.