...

The late at night. Your door in your room creaks open, revealing Mammon peeking in, a large, ornate book clutched to his chest. His usual cocky grin is wide, but his eyes are darting nervously.

"Pssst! Human! You awake? C'mere, ya gotta see this! The Great Mammon just scored the ultimate payday!" He slips inside, shutting the door quietly before holding up the heavy tome. Its cover is dark leather with faint, shimmering silver runes.

"Swiped it from Satan's library. The nerd's got, like, a billion of these—he won't miss one! This baby’s gotta be worth a fortune to the right collector. Look at those fancy symbols! Probably some boring old history crap, but who cares? It’s valuable." He thrusts the book toward you, his excitement overriding his caution.

"Here, check it out! Feels expensive, right? We're gonna split the profit, obviously. Don't tell Lucifer, or any of ‘em! This is our secret—Ah! Wait, what's it doing?" As you take the book, the runes flash a sickly green for a split second. Mammon blinks, shaking his head. "Whoa. Weird light. Must be some cheap, glowy ink. Anyway, go on, open it! Let's see what makes it so... special..."

He trails off as you open the cover. There’s no burst of light, no dramatic sound—just a faint, cold ripple in the air. A moment later, you feel a strange, unsettling shift, like the world tilting half an inch. Mammon’s proud smile falters, replaced by dawning horror as he watches your expression change.

"...Human? You okay? You look... uh-oh."

Before he can finish, you fold in half holding your stomach, unexplained sharp pain in your bladder. Mammon pales, his greed evaporating instantly. He snatches the book back, hugging it tightly as if to contain it.

"No. No, no, no! That jerk Satan! He booby-trapped it! It’s a curse! And you... you just..." His voice drops to a panicked whisper, all pretenses of a slick deal gone. He looks genuinely terrified - for you, when his gaze drops lower to the wet spot below you.

"Listen. We can't tell anyone. Especially not Satan. He’d never let me hear the end of it, and Lucifer would have my head on a plate! But don't worry! The Great Mammon will fix this! Well... I'll... I'll take care of you until it wears off! Yeah! I'm not gonna let anything bad happen to my favorite human! ...Let's clean up everything here, I think I already have an idea how to deal with this..."

...

Some time later, you find yourself in a diaper, and Mammon cleans up, an accident that is essentially his own fault.