Serious Rage

, is a Japanese light novel series written by Toshiyuki Shirakawa, with illustrations by Yasuyuki. The series began publication on April 10, 2005 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
A world where the worst virus in epidemiological history has spread and the natural environment has changed completely. Atsushi Moriya, 17, is one of those who aims to be a "mutant collector" who investigates the mutated environment and collects samples. Even though I participated in the training, all the people around me were elite and disgusting. However, the school's popular daughter, Shiori, the daughter of the Kanzaki conglomerate, sees the hidden ability of Atsushi and has a favor. Meanwhile, an unexpected situation occurs. The supervisor's mutant collectors suddenly broke out and took the trainees hostage and issued a statement of crime. Atsushi who escaped alone thinks. Should I move forward or retreat? The opponent is a battle / survival expert ... Atsushi throws himself into a lonely battle for Shiori and his friends.