Operation Demon Castle Date! by Suzumi Raika

1

Kukuru, a princess who wishes to meet her destined one, is taken away to Brosfell Castle and brought before the Demon Lord Diana, who confesses her desire to marry her. Believing that trying to escape on her own would be too dangerous, Kukuru proposes that before getting married, they should go on a date first. With Diana bringing out all the stops while Kukuru secretly looks for a way out, a date taking place in the demon castle begins.

Chapter 1: Operation 1 released Dec 24 '22
Chapter 2: Operation 2 released Dec 28 '22 Legs Mermaid
Chapter 3: Operation 3 released Feb 14 '23
Chapter 4: Operation 4 released Feb 18 '23