Kono Kamen no Akuma ni Soudan wo!

Kono Kamen no Akuma ni Soudan wo! (こののにを！, Consulting With This Masked Devil!) is a Japanese light novel series written by Akatsuki Natsume and illustrated by Mishima Kurone. It is a spinoff of Kono Subarashii Sekai ni Shukufuku wo!, and has been published by Kadokawa Sneaker Bunko since March 2016.

Synopsis
After Wiz wastes all the money Vanir made from Kazuma’s patents on high quality Manatite, Vanir is forced to take up a job in consulting to pay the monthly rent of the shop. Aqua couldn’t fall asleep, and decided to invade Wiz’s shop to inquire about her and Vanir’s past. Various characters consult Vanir for help.