Princess of the Unified Human Nation of Kaymin, currently a hostage in the Demon Castle. She loves sleeping. Female. Address terms: Akuma Shudoushi -> Leo-kun Tasogare -> Tasogare-kun Poseidon -> Nudist Hades -> Nudist Elder Brother Zetsuran -> Ojou Sandra -> Sand Bath-kun Speech style: It's because I slept too much that I can't sleep! That's mine! ♪ Look! Look into these eyes!!

Male. Area Boss of the Demon Church. One of the Ten Prefects. Has goat horns. Looks like a young man but has lived for hundreds of years. He likes the Princess and often loses his composure over her. Meddlesome and kind. Address terms: Princess Syalis -> Princess Tasogare -> Demon King Poseidon -> Poseidon-kun Hades -> Hades-kun Sandra -> Sand Dragon Speech style: Eh?! Is it over already? Thank you. Listen... I am truly troubled!! This... is a pillow the Princess made, isn't it?

The Demon King. In his 60s, but has the heart of a boy. Has black horns. First person: I (Wagahai - pompous but boyish) Address terms: Princess Syalis -> Princess Akuma Shudoushi -> Akuma Shudoushi Poseidon -> Poseidon Hades -> Hades Sandra -> Sandra Speech style: Prepare yourself! You may think of me as your older brother!!

A god in the form of a young boy. Violent, but extremely sensitive when it comes to his older brother. Address terms: Princess Syalis -> Princess (You) Akuma Shudoushi -> Old Man Tasogare -> Tasogare Hades -> Big Bro Sandra -> Sand Dragon Speech style: I knew it! That's what I thought! Try to understand my delicate feelings a little! But I'm the one who's Big Bro's little brother...

Poseidon's older brother. A god. Currently living in the Old Demon Castle. Terrible at expressing affection for his brother. Address terms: Princess Syalis -> Princess Akuma Shudoushi -> Akuma Shudoushi Tasogare -> Tasogare (You) Poseidon -> Pose Sandra -> Sand Dragon Speech style: It seems you are speechless!! Do you fear me, Princess?!

A member of the Dragon Tribe. Short-tempered; when he gets angry, he emits sand and his glasses break (not a problem since he has many spares). He likes his childhood friend Zetsuran, whom he calls Ojou. Address terms: Princess Syalis -> Princess Akuma Shudoushi -> Akuma Shudoushi-san Tasogare -> Demon King Poseidon -> Poseidon-san Hades -> Hades-san Zetsuran -> Ojou Speech style: You don't mean... you're planning to make a sand bath?! Are you one of that Hero's companions?! You've gone and pried something open inside of me...!

Daughter of the Dragon Tribe Chief. Used to like Tasogare, but now likes Sandra. Since she is trespassing in the Demon Castle, she is being hidden in Sandra's room, so she has little contact with anyone except the Princess and Sandra. Address terms: Princess Syalis -> Suya Tasogare -> Tasogare Sand Dragon -> Sandra Speech style: That's a bit too bold all of a sudden! I see. Your indomitable heart... is truly impressive! Me? As for me...