Mou Chuunibyou demo Ii Mon! (Volume)

is the first volume of the Mou Chuunibyou demo Ii Mon! light novel series, written by Kawasemi Hisui and Illustrated by Yoji Sorimura. It was released under the Dengeki Bunko Imprint in October 2015.

Synopsis
Chuunibyou always saves the world !? Especially cute girls with Chuunibyou ……! "Gut, my body is hot !? This is finally his seal !?" "Fufu ... No wonder. It's inevitable that people will go crazy because of my miasma." "Confirm the distortion of causality. Abnormal situation. This man is dangerous. Request exclusion." Eh, what are these embarrassing people? Is it really Chuunibyou? Naru Hoshimitsu (a healthy second-year junior high school student), a girl who was pulling a don, will join the secret organization  for some reason. She met there with girls with very severe Chuunibyou ... a bright and fun story of Chuunibyou!

(source: Dengeki Bunko Official Website - Translated)