The manga series' story centers on a high school girl named Stella who was born into the wealthy Kuonji family. Every month, the family holds an event called the Tea Party. An incident occurs as all the siblings are gathered this time. Someone says, "Starting now, everyone will kill each other. The person left alive will become the head of the family." Stella's killing game begins.
- The main protagonist of Kakei no Alice is high school girl, Stella Kuonji. She comes from the noble and rich Kuonji family.