Maki is a devil princess from the demon world. She grew up sheltered & doesn't know how to be evil. She is one of the candidates to become the next demon queen.

Keita is a human teenager who ends up summoning Maki. He is on the track team, but is a very slow runner.

Miki is another candidate to be the next demon queen. She tries to get in Maki's way.

Hayami sempai is the captain of the track team & the student body president.

Hara sempai is the vice president of the student council. She has a crush on Hayami sempai.

Pazu is a wind spirit & one of the twelve spirits that Maki can summon.

Sheeta is an angel determined to rid Maki from the human world & to save Keita's soul.