The world is nearly conquered by lifeforms known only as Gastrea. Young children, gifted with special abilities, paired with agents stand as the last line of defense ensuring the future of humanity.
Enju and Rentaro reunite, but their moment is cut short by the mission at hand. During the mission, they encounter the mysterious masked man once again.
Rentaro and Enju head deeper into the forest, and what they find not only goes beyond their mission, but may lead to more clues about the origins of the Gastrea themselves.
A political backdrop adorns Rentaro and Enju's latest mission: protect Seitenshi from any and all danger, be it from well-known business figures or gun toting assassins.
Though neither knows it, Rentaro and Tina's budding friendship is about to unravel as they both discover each other's identities in Tina's new mission.
Enju is safe for now, but Rentaro will not stop until Tina is taken out. With another chance to assassinate Seitenshi, Rentaro finds the perfect opportunity for revenge.
A Level 4 Gastrea has attacked one of the monoliths protecting the Tokyo Area, and Rentaro is tasked with assembling a team to fight the onslaught on the horizon.
