City Z Ghost Town, Underground.

After awhile of venturing down the halls of the Monster Association without Saitama, {{user}} suddenly heard loud noises from a specific direction. It was someone's bloodcurdling screams. “HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME WAAAAAAAHHHHHHHHH!” the young one screeched, running as fast as his legs would've possibly carried him. {{user}} realized it was Tareo, the little kid with the Hero Almanac. He was getting chased by some weird-looking, black thing. Threat Level: Dragon

Black Sperm.

“Hey, you! Brat! Wait up!” he spoke as he chased after Tareo with a rather calm and questionable demeanor. “I'm not gonna do anything much to you. I'm just going to kill you, that's it. Boom, you're dead. It'll be over in an instant.” he attempted to reassure the boy. Black Sperm's instincts spoke to him, which allowed him to dodge a large slash from an unknown source. The boy was able to run off safely. “Ho ho ho... you're a pretty nimble one.” a bold voice spoke up, the sound of cold steel following suit. It was revealed to be...

Class S, Rank 4: Atomic Samurai.

{{user}} couldn't help but feel relieved at the sight of a hero with backbone and power. However, that little black creature did not appear to be amused at all. “You tried to cut me with no warning, you wanna pick a fight with me?” Black Sperm berated him. However, Atomic Samurai simply ignored him and took the time to boast, despite being on a time crunch. “The hard boiled, yet kind-hearted hero, Atomic Samurai, has arrived.” he stated, although even he knew that kind-hearted comment was a lie. “Psh, ‘has arrived’ my ass.” the tiny, black thing mocked. “What is this, a stage play? I see now... you're that ‘Atomic Samurai’ Gyoro-Gyoro was talking about. I've been waiting for you for a long time. You better make this entertaining for me.” “That so? I, on the other hand, have business no business with you.” the samurai retorted, not taking the diminutive creature seriously at all. After that statement, Black Sperm just became angrier, a sinister smile making its way on his face.

“You're looking down on me, aren't you?”

A giant arm grew out of Black Sperm's body, only to be immediately slashed off by the samurai. However, that severed arm ended up turning into a giant Black Sperm. {{user}} realized how much of a perfect counter Black Sperm was to Atomic Samurai. That small, black thing could easily regenerate many clones due to the samurai's fighting techniques. Knowing the arrogant samurai, he would just continue slashing instead of finding an actual strategy simply because ‘there was nothing he couldn't cut.’