Kanna is a first year in high school. On her 16th birthday, her sister asks her to come to her workplace after school. When she arrives, she finds out it is a ero-ge (adult video game) company and is asked to be a seiyuu (voice actress) for a game they are developing. When she's working, she seems to get into a trance where she does everything perfectly.

Spoiler

She seems to have feelings for Motoki