Little Black Book

"You threatened the President of the United States?" Dabi asked with a smirk as he sat across from Saitama at the tropical mansion's expansive dining room table. "I'll admit, I don't have a single regret about joining your organization. I could never imagine working for such a top-tier villain! But speaking of the organization, what are we going to do about Harley?"

"She'll probably find her way back, I'm not concerned," the caped baldy replied with a shrug as he began to push a banana half towards the rhinoceros beetle that he'd sat at the table. "Now c'mon, Buggy, eat! The book said that beetles like you enjoy fresh, tropical fruits such as bananas."

"I used to dine on a plethora of different cuisines that were all prepared by world-class chefs," Cai Sicong replied as he glared at the fruit through his hollow, black, bug eyes. "To be reduced to a damn insect…"

"What are you going to do if the President refuses to surrender though?" the flame villain asked as he sipped a cup of black coffee.

"Whether they surrender or not, the result will be the same. I'll be able to conquer the world," Saitama replied as he pushed the large bug right up to the banana. "Of course, once that happens, I'll need a way to subjugate the world's population. I was thinking of searching through the multiverse for a way to do that."

Setting the mother box on the table, the bald clown tapped at its metal surface as he pondered the ideal dimension to search for such a thing.

"There are infinite universes, right?" Dabi eventually asked. "Why don't you just think about a place where a cool tool of destruction will drop right on your head."

"I guess I could afford to be pretty specific," Saitama answered with a shrug, before clutching the box. "Well, here goes nothing. See ya, Dabi!"

As the ideal dimension popped into his head, a boom tube opened beneath the grey-suited villain, where he promptly tumbled into the blue portal.

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"The alleyway returns!" Saitama snickered out loud as he found himself emerging into a dark, dreary alley that was stuck between two towering buildings. In the midst of a sprawling city, where legions of cars bustled down a busy street, the caped baldy immediately noticed similarities to Dabi's home dimension as well as his own, where the same language appeared to be prevalent around the extensive metropolis.

Before he could begin to explore his new surrounds, something fell from the sky and landed right on the villain's shiny noggin, where the item promptly dropped to the pavement floor. Smirking at the fact that his specific instructions had actually landed him in a world where a tool of destruction would drop from the sky, Saitama stooped down to pick up what appeared to be an ordinary black notebook.

"Death Note?" the caped baldy asked as he read the gothic-font title on the book. "That's a pretty cool name, but how is this a weapon? Does it explode, or something?"

Although his punches alone were destructive, world-ending weapons in their own right, Saitama was in the market for something that he could hold over the people of his new world as a threat. Although his strength was something to fear, it wouldn't stop people from rebelling or speaking out against him, and the caped villain figured that something that terrified people into submission would be most fun.

"The pages are empty too," Saitama commented as he flipped through the notebook. "HAHA, what am I supposed to do, write my wishes in here or something?"

"Well in a way, you could say that," a monstrous, gravelly voice answered from behind.

Whipping around, the caped baldy found himself shadowed by a towering, creepy-looking figure that looked like something out of a horror movie. Dressed in a tight-fitting black outfit that was decorated with skull accessories in multiple places, his skin was grey and dead-looking, and the humanoid creature had bulging, yellow eyes and small pupils. It had tall, spiky black hair, and a gaping mouth with rows of sharp teeth.

"Oh, a monster," Saitama noted casually, before holding the notebook up. "Is this yours or something?"

"Uhh…why yes, I dropped it when I was flying," the creature replied, before raising one of his lanky arms to bring a clawed hand up to scratch his head. "You're not scared of me or anything?"

"Believe me, buddy, I'm the one you should be scared of," the caped baldy laughed with a manic grin. "So what am I supposed to do now, defeat you for this book or something?"

"You can't kill a Shinigami," the monster replied with his everlasting, open-mouthed smile as he put his hands on his scrawny hips. "My name is Ryuk, and what you've just picked up is my Death Note. If you write somebody's name on one of the pages, they'll die. You can even specify the time and cause of death."

"Seriously?" Saitama chuckled as he inspected the peculiar notebook. "Hehe, that is pretty neat. So you're a death god, eh? How about you join me, I've got this operation going on in another reality. I'm looking for things that'll help me subjugate the entire planet!"

"Ah, I guess you're some kind of weirdly-dressed, babbling lunatic," Ryuk sighed as a pair of wings suddenly unfurled from his back, where he began to lift into the air. "Great, of all the people to find my Death Note. I wanted someone fun to pick it up."

"You doubt my power? Heh, looks like a demonstration is in order," the caped baldy grinned as he raised his fist. "You might want to stand back."

Throwing a casual punch, Saitama obliterated a massive chunk of the Tokyo skyline, where the towering buildings exploded before their flaming remnants fell to the city below to cause further damage. People in the streets screamed as traffic screeched to a halt, where bellowing smoke began to rise from the destruction as the sirens of first responders soon echoed over the city.

"Whoa! What a riot!" Ryuk exclaimed as he landed next to the villain. "Nevermind, I had you all wrong, a weirdo like you just might be the entertainment that I was looking for! You know, I saw that a bunch of people in this city were about to reach the end of their lifespan, but I thought it was just going to be from a natural disaster. Turns out it was you!"

"Well if its entertainment that you want, then you've come to the right place!" Saitama nodded as he pulled out his mother box. "So as a Shinigami, I guess you can kill a bunch of people just like that, eh?"

"It's a little more than that," Ryuk answered as he head tilted into a natural angle as he inspected the metal cube. "I didn't come to Earth to kill people, I mean that's just my job. I came here to let someone pick up my Death Note, and then watch what they ended up doing with it. That's fun for me."

"Come along then," the caped villain snickered as the mother box began to glow. "If you show me how to use this thing right, then I bet that I can use it to transform my new world into one, big fun house!!"