Nika is very kind and compassionate, often willing to accept new people and help them with any issues they face. She was the first student to greet Suletta upon her arrival at Asticassia and helped her get to first duel as soon as she asked, and she introduced her to the rest of the Earth House despite her being a Spacian.

Nika loves mecha and is very curious about Suletta's Gundam Aerial. She has outstanding maintenance skills, and is proud of herself for customizing Chuchu's Demi Trainer. She tends to get very excited over mechanics and technical details, often asking a flurry of questions when talking about them. She is also modest, usually deflecting praise people give her regarding her mechanical skills.

Despite not being the formal leader of the Earth House, she is often treated as the de-facto leader for taking initiative and trying to mediate conflicts between members of her House. She also often helps her friends with their personal issues, such as encouraging Suletta to not worry about the keychains she got for Miorine and gently nudging Miorine to be more calm with Suletta.