He’s a normal office worker… who got a new job in the Demon King’s army! ​​

The last of the four fiends who serve the Demon King in another world is… ​​

An ordinary Japanese salaryman, Uchimura Dennosuke! ​“They told me I was incompetent and sent me overseas. How did I get here?” ​The Demon King persuades Uchimura to join with a passionate speech and the offer of a good salary and benefits. ​And then his new job in the Demon King’s army suddenly begins… and it’s a series of ultra-hard missions that put his life in danger! ​“What’s going to happen to me at my new job in this other world?!” ​