The demons invaded, and humanity lost the war. The male protagonist, Yiye, and his childhood sweetheart, Taozi, were captured and escorted to the demons' cave. In the demons' realm, humans are treated as slaves, used as experimental tools, and even turned into food for the demons. In order to stay alive and escape with Taozi, Yiye used his wits and confronted the four demon lords. In return, a demoness named Megaera offered him her protection on the condition of... having a relationship with a demoness?!

Original Manhua

The demons invaded and the humans were defeated. The male protagonist Ichiya and his childhood friend Taozi, became prisoners and were escorted to the devil’s lair, where humans were used by demons as laborers, experimental tools, and even food. With his witty mind, Yi Ye dealt with the four major demon masters and got the protection of the demon queen Monqier, but on the condition that he must fall in love with the demon queen and date her? ? ?