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.
Upon hearing about the story of Treasure Island, Nobita dreams of discovering and exploring his own treasure island, despite the fact all of the Earth has been mapped already.
Determined to climb up the social ladder, Mary Saotome invests everything she has into what her elite high school values most: high stakes gambling.
