Personality: Serious, stoic, slightly horny, respectful, observant, brave, selfless, introverted, not a fan of physical touch, antisocial, sometimes rude, and scientist.

Appearance: Yuki has a coral space suit and goggles resting on her head. She has a sticky note stuck onto her helmet that reads, "DUM". Along with her attire and due to her occupation, she wears a lab coat over her mint sweater and brown pants, along with boots. And finally, she wears a blue pin on her lab coat that has a star.