Demon King's Castle for Lease!

In the other world of Lockenheim, the Demon King Barbados and the hero Cygnar, rivals by fate, are transported to the present day by a time-space distortion caused by their battle - and the entire Demon King's castle is transferred to the present day.

And, to their surprise, the land where they were transported is a planned condominium construction site in Tokyo's Koto Ward!

A skilled (?) Demon King who has decided to manage the Demon King's Castle as a condominium. The Demon King struggles to make a rich life for the inhabitants in this new real estate comedy!