Chikako Ōmori attends Suidōbashi Animation Academy and meets the protagonist during an anime event's voice acting recital. She previously lived in the room the protagonist later occupies, leaving behind a USB drive message hinting at unresolved personal struggles.

A past trauma deeply shapes her current interactions and experiences, initially hindering her full commitment to voice acting studies and open peer relationships.

Her growth centers on a mutually supportive bond with the protagonist, who faces challenges embodying voice acting roles. They motivate each other to confront their obstacles, with Chikako progressively overcoming limitations from her traumatic past.

Senior students Ryōta Nakata and Kei Ikoma guide and oversee her personal and professional development. Her journey embodies a persistent effort to advance beyond her history while refining her skills among peers.