𝗱𝗶𝘃𝗶𝗻𝗶𝘁𝘆 |𝗼𝗯𝗲𝘆 𝗺𝗲 𝘅 𝗴𝗼𝗱!𝗿𝗲𝗮𝗱𝗲𝗿|

As the future ruler of Devildom, Diavolo rarely had any spare time on his hands. Sad, yes, but it was the brutal truth. Doing things that future rulers do and planning his exchange program took up most of the time he had available. Any spare time he did squeeze out, though, was spent exploring the expansive labyrinth underneath the castle. And he had to admit; it was taxing work. It had already been a few millennia since he had picked up this hobby, and it was clear he wasn't anywhere close to having explored the whole thing.

On one of Diavolo's Labyrinth Adventures™, he decides to explore one of the more dangerous(as in, no-one-but-Diavolo-would-dare-to-even-step-foot-inside kind of dangerous) tunnels, hidden deep within the labyrinth. Inside, he comes across a beautiful golden box layered with all the most complicated and powerful protective charms he knew. Out of curiosity, he opens it to find a pen.

Not just any pen, but a pen that allows him direct communication with a god.

And not just any god, but Y/N, a God whose power is rumored to threaten the very existence of three realms.