Triage X

A triage is when several people are injured and a system is employed where five different label colors are applied based on the severity and urgency of the injuries, and then the people are treated based on that system. Black is the closest color to death. The illegal organization Black Label, applies these labels of death to criminals that eat away at society, just like malignant tumors, and run operations to stop them.

Kiba Mikoto, a student at the same school as Arashi, fights evil along with him part of the organization, Black Label. Mikoto runs into a mysterious transfer student, Hizaki Chikage. Mikoto learns a lot about Chikage, and the two of them get very close. Meanwhile, a string of incidents happen where citizens are being burned to death...

She can sing, dance, and act. A top idol, Nashida Oriha, is also a member of Black Label. She spends every day riding the world of evil. Shes slated to help run a live broadcast celebrating a new TV studio, but things go wrong when the studio is targeted. How will Oriha get through this ordeal?

Sagiri Yuko, Tsurugi Miki, and Sayo Hitsugi, Ampule Zero, and Arashi, Mikoto, and Oriha, Ampule One, go to investigate a cargo ship that had arrived at Tobioka Port. Twins show up calling Hitsugi "senpai", but what is the true reason they want to pick a fight with her...

Black Label rids the city of evil by severing the malignant tumors that have made their home there. Suzue Konomi, a detective, has looked into their organization, and finds herself kidnapped. Her assailants true objectives are a mystery, and more than just one group is after her. Will Black Label be able to sever the evil?