After their suspension from the tunnel incident, the four interns: Aizawa, Shiraishi, Hiyama, Fujikawa together with nurse Saejima, are back on Shohoku's Emergency Medical Services. But as soon as their return, Kuroda suddenly handed his resignation. While, on the other hand, a train in Chiba had a major accident. How will they be able to manage the situation without Kuroda's supervision? ~ written by Aiscess