A college student's secret crush on a coworker at a small burger joint collides with chaos when a robbery erupts, unraveling hidden tensions and forcing a tight-knit group of eight to confront fractured loyalties and the blurred lines between love and betrayal.

Ryuhei Agawa is a 25-year-old soba restaurant owner who has been in love with his neighbor, Tamaki Murashibara since he was a child and is always dejected when Tamaki only sees him as a "younger brother". However, the appearance of a love rival starts to ignite Ryuhei, making him determined to end his unrequited love.

11 high school girls awaken bound to the floor of a dining room and must discover why they are there and how they can escape.