Cong Yu, male, 17 years old, is a student.

His hidden identity is a cadre of the Monster Group. He is currently on leave without pay to go to school for further studies.

He lives in a villa area in the northeast of Fengdu, alone, and his house is quite big.

He thought that this kind of life would continue until he graduated from high school and college.

But the sudden intrusion of the magical girl changed his life!

"I am Cong Yu's dog! Woof woof woof!"

"Cong Yu, you don't want your true identity to be discovered, do you?"

"I am the magical girl you corrupted with your own hands, you have to take responsibility!"

Amid the noise of many magical girls (doubtful)...

Cong Yu, who didn't know what expression to show, could only smile.

What? Zhang Wuji abandoned you on your wedding night to find Zhao Min? No problem, I can help you get revenge! As long as you, Zhou Zhiruo, drink this drop of Demon King's blood, you can go and take revenge on Zhao Min! Murong Fu is only thinking about restoring his kingdom, ignoring your feelings? No problem, I can make him stop thinking about restoring his kingdom! As long as you, Wang Yuyan, drink this drop of Demon King's blood, you can control your cousin! Everyone says you're a ruthless female demon? You want to see Lu Zhanyuan? OK, I can let you see Lu Zhanyuan! As long as you, Li Mochou, drink this drop of Demon King's blood, you will possess unparalleled power! Of course, all of this is just me lying to you. Once you drink the Demon King's blood, hehehe… I am the Demon King, I speak for myself, the more I enslave, the stronger I become!