Tokyo 24-ku focuses on three childhood friends, Ran, Kouki, and Shuuta, living in a technologically advanced, yet vulnerable, district of Tokyo.
A year after a tragic incident involving the death of their friend's sister, the trio are still grappling with the loss and their individual roles in the event.
Suddenly, they receive a mysterious communication linked to the deceased sister, presenting them with unsettling visions of the future and difficult choices.
Forced to confront these grim predictions, the friends must work together to protect their home and its inhabitants from unforeseen dangers, challenging the very nature of fate and control.