Triage X manga volume 3 features story and art by Shouji Sato.

When Arashi and Mikoto take down the leaders of a major drug-smuggling operation poised to introduce a dangerous new drug to Tobioka, their cleanup is interrupted by the pyromaniac they met on their last mission! The girl doesn't intend to start any trouble this time, but when Mikoto realizes the mystery girl's true identity, will the truce hold for long?