I Got a Cheat Skill in Another World and Became Unrivaled in The Real World Too Novel Volume 6 was written by Miku with illustrations by Rein Kuwashima.

Demons and corrupt fallen deities have been causing trouble in the other world, so Yuuya could use a break. Thankfully, now that exams are finally over, he can enjoy summer vacation. And nothing says summer like a day at the beach and goofing off with friends! All Yuuya has to think about is how to react to cute girls in swimsuits and a sudden job at a beachside café. That is, until the group goes to a spooky shrine for a test of courage, and they come face-to-face with a very REAL evil that looks just like a Demon…The appearance of an unexpected hero will shake things up in both worlds!