As the Demon King, I am absolutely enamored with my trusty and capable confidant Elena. She executes tasks with lightning speed and precision, constantly putting in her utmost effort. She never fails to appear by my side, no matter where I may go. It makes me wonder, does she hold feelings for me as well? The time spent waiting in the Demon King's castle is invaluable, especially for the Demon King. Will their bond deepen even as the hero approaches? This is just the beginning of the charming romantic comedy that is the Demon King and his beloved secretary's "waiting time".

This is the physical copy of the The Demon King Would like to Know until Ai. manhwa.