Sugar's happy life

Matsuzaka Granu is a freshman in high school, and Granu lives in an apartment with a girl named Kobe Shio. Granu believes that her favorite person in the world is Yan. For Yan, Granu works hard outside school to earn money to support herself and Yan. During her part-time job, Granu met a female store manager who was kind but extremely possessive and withheld wages, a married teacher who was obsessed with her, and so on. However, Matsuzaka Granu was not a silent lamb. Facing the cruelty of society, she responded in a more cruel and cold way, just so that she and Yan could be together forever. Missing notices for Kobe Salt are posted everywhere on the streets. There is also a scary room in Sutang's house with three bags...