Dog on the Hanging Cage

Jung Heeyeon, an Omega, had lived his entire world within his grandfather’s mansion until the age of nineteen. For his grandfather, who bought and sold Alphas and Omegas, Heeyeon was no different from livestock, raised only to be sold off at a high price. In a world where even resignation was a luxury, what finally dragged Heeyeon outside the mansion was a kidnapping carried out by someone who held a grudge against his grandfather. Left alone for hours inside a dark, empty container with no windows, the only person who appeared before Heeyeon was Yeon Daepyo, an Alpha who did not react to him being an Omega. The man, who had dismissed Heeyeon as a “mongrel”, began to change his attitude after learning about Heeyeon’s background, eventually going so far as to make proposal to him… Source: MU Includes 3 extra volumes.