Kuroki Tomoko is a super popular, high school girl, who has had 50 years of dating experience, and 100 boys... in the Otome game world. In the real world, she is a 15-year-old shut in, who has all of the qualities of a "mojo" (喪女, a gloomy or unpopular woman).

However, when school isn't going as she expected, and she isn't as popular as she had thought she was, she takes a look at herself in the mirror for the first time in a few years, and has some shocking revelations...