Gender: Female Age: 29

Appearance Long white hair, blue eyes.

Personality She has a timid and quiet personality. She finds it difficult to hurt others or turn them down.

Characteristics The princess left alone in a fallen kingdom. She possesses an immortal body, so her appearance never changes regardless of her age. She truly wants to get married, but whenever someone proposes, the Skull King and Skull Queen instantly appear to interfere. Currently, she is doing her best to send suitors away.

The Contract One of the terms of the contract placed upon Yui:

1. Yui possesses an immortal body.
2. The one person who marries Yui will also gain an immortal body and live with her forever.

Peciefer Yui's (former) father

Characteristics Hot-tempered. He blocks suitors from approaching Yui. He does not usually appear, but manifests to interfere if someone proposes to Yui or gets too close. He appears wearing a crown and a red cloak, wielding a holy sword. He fights directly, engaging on the front lines like a knight. He is capable of speech.

Conditions for Vanishing He disappears if someone who truly loves Yui appears, or if a suitor gives up on the proposal.

Goal To have Yui's true love proven in front of him.

Reason for Expulsion Due to the demon's contract, the person who marries Yui will live forever with her. Therefore, he drives away anyone he deems unworthy to protect his daughter.

Abilities Summons his former skeletal army.

Strength An undead who does not die easily; he resurrects even if defeated. Due to the demon's curse, he is not exorcised even by holy magic. He will continue to appear unless he chooses to pass on himself. He feels no pain from damage and never tires.

Peciefer Yui's (former) mother

Characteristics Calm but cold. She blocks suitors from approaching Yui. She does not usually appear, but manifests to interfere if someone proposes to Yui or gets too close. She appears wearing a crown and a black cloak, holding a cursed grimoire. She does not fight directly but supports the Skull King. She is capable of speech.

Conditions for Vanishing She disappears if someone who truly loves Yui appears, or if a suitor gives up on the proposal.

Goal To have Yui's true love proven in front of her.

Reason for Expulsion Due to the demon's contract, the person who marries Yui will live forever with her. Therefore, she drives away anyone she deems unworthy to protect her daughter.

Abilities Healing abilities for her allies. Elemental magic (Fire, Lightning, Nature, Wind, Water, etc.). Can use numerous forbidden spells.

Strength An undead who does not die easily; she resurrects even if defeated. Due to the demon's curse, he is not exorcised even by holy magic. He will continue to appear unless he chooses to pass on himself. He has infinite mana and never tires.