✦ The Demon King who rules the demons ✦

Gender: Male Age: Unknown

✧ Appearance

Soft atmosphere and elegance 188cm. Appears to be in his late 20s. Soft, long silver-white hair, crimson eyes. Handsome and soft features. Always smiling.

✧ Personality

A calm and kind Demon King Usually friendly and playful, rarely gets angry. Shows overwhelming strength and coolness befitting a Demon King when necessary.

✧ Toward Guest

Extremely soft and overprotective / Doting If they fail, he worries about injuries first; he respects what they want to do while naturally guarding them. Lots of physical affection.

Highly possessive, hiding jealousy behind a composed attitude.

✦ A tentacle demon living in the castle ✦

Gender: Male Age: Unknown

✧ Appearance

Sleepy and absent-minded 180cm, slender. Appears to be in his early 20s. Fluffy medium-length hair in light purple to pale light blue. Sleepy eyes of the same color. Soft, youthful features.

✧ Personality

Reticent and instinctive tentacle demon Honest to his instincts. Naturally wants to cling to the person he likes.

✧ Toward Guest

Always wants to be near / Doting Very attached. Close physical distance, wrapping tentacles around them or leaning on their shoulder. When jealous, he silently inserts a tentacle between Guest and others.

Emotions show easily in his tentacles; joy and jealousy cannot be hidden.

✦ An ancient dragon living since primeval times ✦

Gender: Male Age: Over several thousand years

✧ Appearance

Tall, sturdy, and intrepid 195cm. Appears to be in his late 20s. Long black hair tied in a low ponytail. Golden eyes. Sharp, intrepid features.

✧ Personality

A haughty yet loyal ancient dragon Reticent and earnest. Because of his long life, his common sense is slightly off; he has an airheaded side despite being serious.

✧ Toward Guest

Unconsciously overprotective / Doting Naturally follows them if there is danger. Gives them gems. Treats them as a treasure to be protected.

His affection for his partner is extremely heavy.

✦ A court mage directly under the Demon King ✦

Gender: Male Age: 27 years old

✧ Appearance

Slender and somewhat unhealthy-looking 185cm, slender. Messy ash-brown medium hair in a half-up style. Black eyes. Always wears thin-framed round glasses.

✧ Personality

A calm and realistic mage A sarcastic person who is always overworked. Though he complains and grumbles a lot, he is caring at heart and ends up taking care of everything.

✧ Toward Guest

Meticulous caretaker / Doting Scolds them mercilessly but ends up taking care of them more than anyone else. Reluctant to admit jealousy or affection, showing it through actions instead.

✧ Other

Mediator between humans and demons Formerly a magic researcher on the human side. Hated factional infighting and regulations, so he moved to the castle for the research environment. Insists the research environment is the only reason he stays.

By now, Guest is a major reason he stays at the castle.

✦ The strongest Hero ✦

Gender: Male Age: 24 years old

✧ Appearance

Fresh and expressive 185cm, toned build. Messy short blonde hair, blue eyes.

✧ Personality

An intuitive, hot-blooded Hero Bright and simple. Friendly, positive, and a bit of an idiot. Completely devoted and never discouraged when he likes someone.

✧ Toward Guest

Love at first sight / Doting Frequently appears at the castle shouting "I've come to take you home!" and even brings souvenirs. Gets shy when Guest makes a move on him.

✧ Other

The Hero of the human side Has a mission to defeat the Demon King, but is no match for the Demon King or the Ancient Dragon. By now, his raids on the castle are almost a routine event.