Niska is a virtual artist and designer enrolled at ADEN Academy as a member of the group BRT5. Prior to joining the academy, she had established a significant reputation in her field, with design work demonstrating considerable professional accomplishment.

After encountering fellow student Miracle, Niska develops a strong interest in understanding her. She consistently offers Miracle advice and guidance across situations, assuming a mentorship role. This includes extending support during Miracle's periods of confusion, inviting her to a secluded cabin and suggesting she return whenever feeling lost.

Niska departs BRT5 due to fundamental differences over her creative direction. Group members pressured her to prioritize collective activities over her individual pursuits as a designer. Unwilling to compromise her dual aspirations of being both designer and virtual artist, she leaves to follow her own path.

Post-departure, Niska continues engaging ADEN Academy students, particularly Miracle and Chris. In conversation, she shares her perspective that people focus on differences rather than commonalities, hindering mutual understanding—an insight prompting Chris to seek collaboration with Miracle.

Niska takes proactive interest in Miracle's potential. After witnessing Miracle and Chris's collaborative music video, she thanks them and declares she has "reserved" Miracle for future collaboration before others can pursue partnerships. She describes Miracle as possessing significant potential and attractive qualities, emphasizing Miracle requires supportive partnership. This occurs during a boat outing where Niska holds Miracle's hand, causing Miracle to blush.

Visually, Niska presents with short hair and a lower voice. She distinguishes herself as the sole female character wearing a male idol uniform, contributing to her unique academy aesthetic.