Rating
The Northern Grand Duke’s Secret Contract Average 4 / 5 out of 8
Rank
N/A, it has 0.9K monthly views
Alternative
The Secret Contract With the Northern Grandduke
Type
Manhwa
The Grand Duke of the North, who is cursed, experiences a burning need for sex. The wizard, who just so happened to catch the scene, suggests a covert agreement to use the grand duke’s sperm as study material rather than satisfying his want to mate every night.