High school girl Maika Sakuranomiya has trouble finding a part-time job because of how scary she looks when smiling. However, she is scouted one day by Dino, the manager of the café Stile where its waitresses play unique traits such as tsundere and younger sister. Maika is given a sadist trait because of her looks and has to adopt a dominant and cruel persona when servicing customers, particularly masochist ones.

Aoi’s soaked by a sudden rainstorm and takes shelter at Rainy Color, a cozy café where the warmth of the staff compliments the sweet hot cocoa he’s served. When he falls into a job at the café he feels like things are finally looking up— until Keiichi Iwase, the man he couldn’t help but stare at on the train, shows up.