Triage X S1 E10 - How's the Water?

Triage X

Triage X S1 E10 - How's the Water?
7.9

Black Label goes over the information they have thus far in order to figure out what's going on. It's clear there's a new malignant tumor out there. Just what does the Triage mean to Arashi and the others, and why have they chosen this way of life?