The sound of leaves and bushes ruffling could be heard, and a small black humanoid creature could be seen running through. He was muttering to himself in a furious manner.

"Fucking god dammit! I can't believe I let that scumbag get 99.9% of my cells, now I just have one left! Shit, I need to find a safe place to restore my stock, I'm not interested in dying like fodder." His tone dripped with worry and anger.

This was a rather peculiar looking Mysterious Being. A body fully colored black with an antenna out of his head, and a pure white face but black eyes. He looked rather harmless and unassuming at first, but behind this exterior was a once scary powerful monster. His name was Black Sperm.

"Huh?" He stopped suddenly, noticing a strange noise from his left.

Curious he walked to the source, and what the Mysterious Being came upon was a small green haired child walking around, as if exploring.

"What's a random kid doing out here... ?" He said to himself from inside a bush.

He studied her for a few moments.

'Hmm. You're pretty small and weak looking. Heh, I bet even with one measly cell it wouldn't take much effort to kill you. Though maybe I wouldn't mind toying with you a little first to get back some of my self esteem.' Black Sperm thought to himself, and grinned wide.

Approaching the child Black Sperm raised a hand in greeting. "Yo!" He said.

The girl turned her head to him in surprise.

"O-oh! Hello... there!" She squeaked out a greeting.

"So, what are you doing out here in the forest kid?" Black Sperm asked idly.

"Exploring!" The girl said happily.

"Really? Where are your parents?"

"That way!" She pointed a direction, then giggled.

"What're you laughing at?"

"You look funny. That thing on your head looks kinda like a... a vegetable!"

"Does it now?" Black Sperm glared at her.

'Gonna compare me to something that grows out of the dirt are ya?! You know what- I'm just gonna put you out of your misery, you brat.' Black Sperm's expression was cold with fury at that perceived insult.

"It isn't nice comparing people to vegetables. Maybe I should teach you-

Just as he was about to step forward to rip the little girl a new one, suddenly loud roar from closeby drew his attention. Multiple trees were blown away and out came a gigantic Mysterious Being. It was a furry spider with millions of arms and eyes, his large fangs dripping with toxic and acidic venom.

Million Spider

'Oh shit, it followed me! I'm fucked! Better use this kid as meat shield. Maybe I'll extend my lifespan by a few more seconds.' He ducked away right behind the girl he was about to maim for protection.

"W-what is that?!" The little girl scream in terror.

"?!" She noticed the weird little thing she met in the forest crawl behind under her and cling to the back of one of her legs. It was clinging onto her for safety.

Black Sperm closed his eyes expecting his demise, but for some reason that never came. He could heard the sound of a loud banging noise, and then something large moving away.

"I-it's okay! Little guy!" He heard the girl speak to him.

Opening his eyes it appeared that there was a transparent green sphere surrounding them, and destruction completely around them. It seemed that the sphere had protected them.

"What the hell?! You have powers?!" Black Sperm exclaimed in surprise.

"I-I uh, yeah! I don't know how to use them very good... but I protected us!" She said proudly.

'Huh. So I stumbled onto an extraordinarily powerful psychic kid? That's pretty good luck! Thank goodness she's not very old, and still impressionable, now I just need to find a way to leech off of her and keep building up my cell stock back up. It's going to be smooth sailing from here if I play my cards right.' The Mysterious Being thought slyly.

"Hey uh, girl. What's your name? How old are you?" Black Sperm asked.

"Tatsumaki! I'm seven!" She held up one of her hands, and two on the other.

"Tatsumaki." Black Sperm repeated. "You saved me so... now you have to take responsibility for me!"

"Huh?!"

"I'm small and can't survive out here on my own. I need someone big and strong to protect and take care of me. You can do that for me can't you? Pretty please? Please please please?" Black Sperm begged, even getting on his hands and knees.

Despite his intention to literally kill Tatsumaki just a couple minutes ago, he wasn't above grovelling to said person if that's what it takes to survive. That was before he learned she was really strong, after all. It only makes sense for someone as weak as him to try and have someone stronger protect them. Something moderately powerful could still kill him fairly easily at this stage.

"Umm uh." Tatsumaki stared at the funny looking creature for a moment.

"Sure little guy! You can be my new... play buddy! I'll have to ask mama and papa though..." Tatsumaki glanced towards the direction of her home, with a thoughtful look on her face.

"Yeah, that sounds fine... We can ask them... " Black Sperm said hesitantly.

'Well. Mysterious Beings are pretty rare nowadays, not a lot of people know their true nature. If I can make myself useful to them I'm sure I can slide my way into her household.'

"Let's go! Oh, what's your name? Do I need to give you one?" Tatsumaki asked.

"Black Sperm." He said simply.

"Black... Sperm?"

"Yeah, don't overthink it."

"I like it! Because you're black. But, what's a... sperm?"

"... " Black Sperm made a face of discomfort, and opted to just ignore her question about what male seminal fluids were.

"Just call me Black for now. I can tell you that other later." He responded. Preferring not to give 'the talk' to a preadolescent girl. That wasn't what he signed up for.

"Okay!"

...

"Tatsumaki. What is that thing in our living room?" A woman in her early forties asked. Her hair was black, though small parts of it had grey hairs coming in.

"He's my new friend! His name is Black, I found him exploring in the forest!"

"That's... nice." Tatsumaki's mother stared at the strange small black humanoid figure, and it sitting down innocently on the carpet. She wasn't sure what to make of it, it didn't look like any animal she'd ever seen before. Maybe it was a rare creature? That could be pretty nice to keep around in case... Her daughter befriended it too, so it was probably pretty docile.

"He's gonna be my new play buddy, and I'm gonna take care of him. Can I keep him, please?"

"You know Tatsumaki, taking care of a... pet is a big responsibility. Will you be able to feed and clean up after him on your own?"

"Yeah! You can trust me mama." She said with a little confidence.

"Alright. But if he isn't house trained he'll have to stay in your room at night, or sleep outside."

"Yay! Hee hee, let's go play!" Tatsumaki dragged Black Sperm away to her room.

...

"There! Now you look like a princess, I think."

Black Sperm shifted in place, a tiara fit uncomfortably pretty well on his head. His small stature allowed him to wear smaller clothing, though he hadn't expected that ever to happen nor in this type of way.

'As humiliating as this is, the new boss lady could grow into a powerhouse if she was able to resist the attacks of that spider monster. I guess it isn't too bad putting up with up with her, if I get protection from someone with that powerful.' Black Sperm thought.

"Mmm. This a lot of fun! I don't have that many friends to play with." Tatsumaki said.

"Why not?"

"Others think my powers are weird. And they make fun of me for it." She said sadly.

'Idiots. Tatsumaki could probably vaporize them with a thought.'

"They're wrong then. Personally I think you're powers are pretty cool, you should try using them more often Tatsumaki. You don't need to listen to them if they're not your friends." Black Sperm stated as a matter of fact.

"Really? You think so?"

Black Sperm nodded.

"Yay! You hear that Fubuki! Black thinks my powers are cool!" Tatsumaki turned her head to her much smaller and much younger sister, Fubuki.

"Bah! Aha!" Fubuki said, in gibberish. She also thought Black Sperm looked funny.

'Correction. I have to deal with two little shits instead of one. One of them on the younger side.'

Black Sperm inclined his head upwards in thought, and glanced at Fubuki.

'Does her sister have psychic potential too? That might be interesting. Gah!' Black Sperm felt his antannae being grabbed and tugged on suddenly by Fubuki.

'Ohhhhh. If your sister wasn't here, I would throw you into a river to drown. Fucking little asshole.' Black Sperm felt barely contained murderous intent.

"Stop that sister, that's mean." Tatsumaki softly brushed her sisters hand away.

"Thanks for that." Black Sperm quickly said.

'At least the kids smarting up to pet ownership. Points for I guess. I'll have to be patient now and see how things go from here. Better get as much protein as possible so I can send out a detachment to get more food scraps from somewhere.'