I'm the Demon King, and the Hero Is So Weak It's Giving Me a Headache

I'm Satith, the Demon King. If I follow the script, I'll be defeated by the hero on the fated night that comes once every five hundred years, and then I can make a glorious exit and retire to a lazy life.

I've worked diligently toward that goal for hundreds of years, and at last my destined opponent has arrived. But this guy is so weak that even his ultimate move can't get through my first layer of armor.

...How am I supposed to lose to this hero? Help, I'm waiting online!

The hero is the top! A little short story written on a whim, just for fun.

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