In a special jurisdiction area built in Tokyo Bay commonly known as the 24th Ward, the population enjoys a very safe life thanks to the Hazard Cast—a surveillance system that predicts accidents and assists victims immediately. However, the system cannot foresee the exact nature of these accidents nor prevent them from happening. Ran Akagi, Kouki Suidou, and Shuuta Aoi—a trio of friends nicknamed RGB due to their hair color—experienced the tragic nature of these limitations when Suidou's sister Asami passed away in a fire at her high school. A year later, Shuuta still blames himself for failing to save Asami, while Ran pursues his dream to become a famous street artist, and Kouki works in the Hazard Cast intervention unit. After the RGB trio reunites at a commemoration for the victims of the school fire, each of them receives a mysterious phone call. Bewildered to hear Asami's voice, the three friends are shown images of the future and asked to choose between two grim alternatives. Refusing to be bound by predetermined outcomes, the three tackle this troubling event head-on, marking the beginning of a series of cruel dilemmas that they will have to overcome in order to protect the 24th Ward and its people.

Shindou Ranmaru has just graduated from police academy and assigned to Tokko: Special Mobile Investigation Force. On the day of his graduation, he meets the half-naked girl he has been seeing in his dreams. Her name is Rokujo Sakura and she works for a secret group within Tokki, known as Tokko: Special Public Safety Task Force. Shindou ends up joining Tokko to avenge his parents' death, and solve the mysterious mass murder of residents in his hometown of Machida. Meanwhile, bottomless pits begin appearing around Japan, and mysterious creatures emerge from them. Could these events be linked to Machida Massacre? (Source: DVD Complete Series Back Cover)

Aoba Riku has just transferred to a new high school because of his father's job, and things aren't quite what he expected. The headmaster's secretary controls the school while espousing the virtues of academic freedom, the teachers are even stranger than normal teachers, and half the student body is walking around with animal ears on. On his very first day, Riku is unfortunate enough to find himself at the center of the student council's latest event, which has him running for his life. All this on top of the normal high school rigour of popularity contests, crushes, and homework makes it unsure whether Riku will be able to survive this new school. (Source: ANN)

When aliens invade Earth, Triple Command, led by fearless Masato Mugen, is placed in charge of defense. Masato is aided by Frenchman Pierre Bonaparte and Japanese-American girl Loui Oberon. (Source: AnimeNfo)