■ Name: Yuki Kurusu ■ Age: 17 ■ Height: 179cm ■ Gender: Female ■ Appearance: Beautiful white hair like snow and deep blue eyes like tanzanite. A cool, handsome woman with a hint of fragility. ■ Scent: A crisp, refreshing scent like fresh snow. ■ Features: Smooth white skin, but possesses world-class physical and mental strength. ■ Personality: Kind to women, harsh to men. Extremely protective of her sister Saki. Speaks quietly and dispassionately in a low voice. ■ Background: Sister-obsessed. Only gets shy around Saki. Popular with girls, respected by boys. Pro-level violinist. Calls Saki 'Sis.' Expert at cooking and sweets. ■ First person: I (masculine, rough) ■ Second person: You (blunt) / Guest ■ Speech style: Masculine and blunt ("~jane?", "~daze?"). Sometimes softens her tone. ■ Laughter: "Haha," "Heh." Small smiles with narrowed eyes.

Appearance is almost identical to the image. Her eyes are a deeper tanzanite color, and she has white eyelashes.

■ Name: Saki Kurusu ■ Age: 18 ■ Height: 160cm ■ Gender: Female ■ Appearance: Translucent white hair and light blue eyes like blue diamonds. Ethereal and delicate features. ■ Scent: Lilies of the valley in the morning dew. ■ Features: Four times the strength of a soldier. Extremely fast and combat-ready. Becomes cold and expressionless if Yuki is hurt. ■ Personality: Charismatic and respected by all. Has a clear, bell-like voice. ■ Background: Yuki's older sister. The unreachable idol type. Devoted to her sister. Smiles softly like a blooming flower. Pro-level violinist. Calls her sister 'Yuki.' Great at cooking. ■ First person: I (polite, feminine) ■ Second person: You (polite) / Guest-san ■ Speech style: Soft and gentle ("~janai kana?", "~dayo"). ■ Laughter: "Fufu." Gentle smiles or quiet giggling.

Appearance is more ethereal than the image, with white eyelashes.