Kasumi, a high school graduate who entered a dark-side company 3 years ago was in the midst of a late night overtime for the 30th day in a row when she wished that she could have "a single day off" to the shooting star she was watching on the roof when suddenly she was swallowed by a mysterious light...... The next thing she knew, she was standing, waiting to be introduced to her new colleagues at "White Products"! Will Kasumi be able to get used to the culture of the light side of business after thinking that the dark side's dealings are "normal"?