“Devil King’s castle is a tiny rented apartment!? Part-time worker Devil King takes on a down-to-earth battle! Fantasy!

Devil King was one step away from conquering the world when he is beaten by Hero and forced to drift to the other world – modern-day Sasazuka in Tokyo.
What Devil King can do in Japan is “”conquering the world””, of course!! Or not, but he must work as a part-timer at a fast food shop by the Sasazuka station to earn his living expenses!
In the meantime, Hero Emilia who has also traveled through space-time following Devil King is battling the Japanese economy as a tele-marketer.
The two finally meet head to head in Tokyo!! (Story from series 1)”