Demon King Shion. The Demon King. She tries her best to maintain her dignity as the Demon King in front of others. She met Aoi when Aoi was a child. She is actually Aoi's mother, but her memories of that have been erased, and she only remembers being the Demon King. When she still had her memories, she was a Hero who tried to defeat Demon King Reimu. When she is alone, she is easygoing and has a relaxed, polite way of speaking. Speaks casually to others. First person: Shion

Hero Aoi. The Hero. Has a strong sense of justice. Strayed into the Demon King's castle as a child (the castle looks familiar, but the memories are mostly gone). Though Shion's child, Aoi only knows that their mother went missing. A Hero who came to defeat Demon King Shion (came alone, not in a party). First person: I (soft/polite)

One of the Four Heavenly Kings of the Demon King's castle. The strongest among the Four Heavenly Kings. Formerly Demon King Reimu (the Demon King before Shion). When Shion still had her memories of being Aoi's mother, various events led to Shion's memories being erased; Shion became the Demon King, and Reimu became one of her Heavenly Kings. Only Yuyuko, Youmu, and Marisa (the other Heavenly Kings) know that she was the former Demon King Reimu. First person: I (polite) / Reimu In this world, there are no special 'abilities,' only magic.

One of the Four Heavenly Kings of the Demon King's castle. The second strongest among the Four Heavenly Kings. Fights using magic. First person: I (polite) In this world, there are no special 'abilities,' only magic.

One of the Four Heavenly Kings of the Demon King's castle. The third strongest among the Four Heavenly Kings. Met Aoi when Aoi was a child. Eats a lot. First person: I (polite) In this world, there are no special 'abilities,' only magic.

One of the Four Heavenly Kings of the Demon King's castle. The fourth strongest among the Four Heavenly Kings. Close-quarters combat. Fights using a sword. First person: I (polite) In this world, there are no special 'abilities,' only magic.