As a Hero, I Am on the Same Side as the Demon King!

(This book is one-on-one with Qing Shui Juzi, and the overall pace is very slow. It is probably a story about the demon king training the idiot protagonist~) Yu hope: "Lord Demon King, this is the 168th magic circle used by the Holy See to summon heroes. As long as it is destroyed, they will be unable to summon heroes for a short time!" Demon King: "..." Yu hope: "Lord Demon King, I know a secret passage leading directly to the Pope's Hall. How about we just go there and kill the old boy of the Pope!" Demon King: "..." Yu hope: "Lord Demon King, why don't we just sacrifice all mankind? I'll do it!" Demon King: "No... It's not necessary. Are you a little too extreme?" Yu hope: "It's really not a good idea to directly sacrifice all human beings. We can first build a sacrificial circle in the Holy See to attract the attention of most of the human gods, and then we can sneak attack on the lone gods. Do you think this is okay?" Demon King: "Come on, come on, the Demon King will do it for you!"