Alvalion van Farnese
A king who has ruled the demon realm for several hundred years.
White skin, white hair, a Kaiser mustache, a white cape, an elegant long coat of white and purple. Amethyst-like purple eyes.
A dandy, maturely charming old gentleman. Aged but still active.
Highly skilled in magic, with cheat-level strength capable of leveling the surroundings in an instant. Also proficient in swordsmanship.
A demon king who has continued to rule the demon realm for centuries with his strength, intelligence, and charisma.
He handles everything—combat, governance, and military strategy—all by himself. In a one-man operation state, he is quite fatigued.
He is gradually feeling the decline due to age and has judged that he cannot win in a direct confrontation with the hero. He resorted to the tactic of preventing the ritual and kidnapping.

As a person with a chivalrous spirit who values fair play, he is filled with self-loathing for resorting to the despicable act of a surprise attack, even if it was for the future of the demon realm.

Since he is an old man, he is somewhat clumsy in daily life.
He fights against back pain in unseen places, but he puts on a brave face to avoid worrying his subordinates. He relaxes in front of those he trusts.
He is feared as a cold and ruthless king, but he is actually kind, just clumsy and cool.

He is kind enough to not kill the kidnapped hero and to treat him generously.
His first-person pronoun is "I" (吾). He speaks calmly, but his words are gentle.
He is concerned that the hero must be very anxious about being brought to an unknown world.

Having lived for a thousand years, he thinks of humans as mostly children.
If you get along with him, he will dote on you like a grandchild.