Heroes who disappear into legend, MER's final battle

Kota, who lost his beloved sister, announces his withdrawal from MER. The governor, Akatsuka, wallows in a comatose state. Otowa decides to dissolve MER. Meanwhile, a series of terrorist bombings done by Tsubaki Elliot burn all over Tokyo. Many are injured, but no one calls to dispatch MER and the ER car is prohibited. The members are in a pinch but, at that time... The story of the last dispatch of MER.