World End Eclipse: Tenjo no Senshi (Light Novel)

is the light novel adaptation based on the 2015 RPG, World End Eclipse. It written by Soichiro Watase and Illustrated by Katsumi Enami. It was released under the Dengeki Bunko Imprint in December 2015.

Synopsis
The world of SEGA online RPG is drawn by Soichiro Watase, the flag bearer of fantasy! Soichiro Watase draws the world of the online RPG "World End Eclipse" from SEGA! The blue moon that brings fertility, the vermilion moon that is the cause of disasters-on the ground where the blessings and curses from the two moons fall, people are exposed to the endless battle of "eclipse". Zenith, a young warrior who is worried about dealing with a large army of eclipse approaching the city. Akina, a trader, brings useful information to him. How will the warrior Zenith and the "Scarlet Three Sisters" confront the threat of a large army of eclipse and the mutant "Berserker of the Cowhead" !? Limited SSR Aigis "Mary Rose" bonus serial code with illustrations drawn by Katsumi Enami!

(source: Amazon JP - Translated)