Reincarnated Demon King: I'm Too Lazy to Watch the Plot

I, Kairos, am the Demon King of the Seventh Domain of the Demon Realm, with apostle-level combat power and an army of 200,000 demons under my command. But there was a little problem - I had no idea what I was doing. [Maximum level account travels but the plot skips entirely] When I woke up, I became the max-level demon king with 999 swords in my own game. Wearing demon armor, four loyal demon leaders knelt down and worshiped under the throne. They reported to me enthusiastically: "Your Majesty! Lord Held has an order to break through the human world's defenses within three days!" Me: "Helder... Who is this?" "This battle is related to the demon clan's thousand-year plan! You made a blood oath a hundred years ago——" Me: "What oath? Did I sign it?" "The two hundred thousand troops have been assembled! Just waiting for your order!" Me: "... Wait, why are we attacking the human world?" The air was suddenly quiet. The eyes of the four commanders looking at me gradually changed from enthusiasm to confusion, and then to worry about "Did your Majesty fall asleep?" Yes, I became the most confused villain boss because I was too lazy to read the plot.