Goumontou wa Nemuranai (Manga)

is a Japanese manga series written and illustrated by Shino Soga, based on the song of the same name by Mothy_Akuno-P. The manga was serialized in the Comic@Loid magazine and published in Japan by ASCII Media Works under the Dengeki Comics NEXT imprint from May 2014.

Synopsis
What do you do when you have lost everything? Lloyd Lowell has found his answer. In Leon City, people are drawn to the torture of tower, Torcia Tower. There, it is rumored, lies treasures which can bring you fortune, fame and, most importantly—eternal life.

However, nothing goes as planned when Lloyd enters the tower...

(Source: MU)