Time skip to the very next day, the cyborg is shown standing in front of Saitama's apartment. After a brief knock and an equally loud deep breath. He announces himself.

"Sensei sir!"

Talk about uptight.

As Saitama opens the door, he has his eye-brows frowned. "So…. you actually showed up…uh…"

"Genos! Sensei sir!!"

"Could you lay off all the "sensei" stuff?" Saitama asks.

"Yes Master!" Genos says.

"Not master either"

Timeskip. After Saitama decides to let Genos into his apartment.

"Have a drink and go home. I'm not looking for disciples…. Wait… your back in one piece?" Saitama quickly gets distracted from his main objective. He shall pay for it dearly in the very near future.

"Indeed. My body is mostly mechanical so my parts can be replaced." Genos informs

"You're an odd one, aren't ya?" Like that shouldn't have been obvious from the beginning.

"What parts have you installed in your body master?" It is clear Genos didn't pay any attention to what Saitama asked about not calling him master.

"Don't use any." Saitama quickly informs.

"Huh? What about the skin coloured armour on your head?"

"Yea, that's just my skin dude."

"That's odd, you appear far too young to already be bald."

"So I'm bald, what's your problem huh?!!" The first time this man has gotten this loud since he gained his power.

Like I said earlier, he would pay for his mistake dearly with invasive questions and long explanations.

"My problems?" Oh here we go. "You are asking me to list each one of them?"

" Yea no thanks. I'm good." Saitama says weakly.

Genos does not seem to hear him. "Four years ago,when I was fifteen, I was still a real human being."

"You heard me say "no thanks" didn't you?" Saitama says mildly confused.

"Although we were poor, and had to pinch pennies, we were still able to get by. We lived a peaceful and happy life together, until that fateful day, when a crazy cyborg went out of control and attacked our town. We never knew why it happened. Most likely, a failed body modification generated an irregularity with his brain. He destroyed everything in sight. Parks, schools, buildings, my house, it even took the lives of everyone in my family. Miraculously, I survived, though being a weak 15 year old, I was only, and at the end of my strength in a ruined town. That's when Dr Kuseno happened to pass through. The doctor, a scientist for Justice, was on a mission to stop the rampaging cyborg and end its oppression. I asked the doctor to give me body modification surgery, to make me better, stronger, faster. That's how I was reborn as a cyborg who fights for justice. I promised Dr Kuseno, I would terminate the evil cyborg and return peace to this world." Genos Narrates.

"Oh I see-" Saitama attempts to say, but is interrupted.

"It's been four years since that day, and at 19 years old, I am focused and driven. I wander from town to town, eliminating evil. The monsters and criminal organizations I have destroyed are numerous, but I have been unable to locate any clues about the insane cyborg, and have become increasingly frustrated and restless. I find myself chasing a virtual image of that cyborg whenever I face my enemies. Then last week when that mosquito monster appeared, I let my concentration slip and paid the price. I thought I could lose to no one but the rampaging cyborg, so I neglected to analyze the data on my opponent and rushed in headlong to confront her. The result then, as you know, was that an enemy with immense strength bested me. If you had not been in the area, master Saitama, I would have been undoubtedly destroyed. Master, you saved my life that day. The life that was once saved by Dr Kuseno, many years ago, has now been saved yet again by you master Saitama, and I feel the weight of that responsibility. I must not allow myself to die before finding and destroying that cyborg once and for all. And to achieve that I have to continue fighting evil as a righteous soldier until that fateful day comes when he appears before me. I need to get stronger! Last week, when I saw what your punch(slap) was capable of, I knew immediately that I had to study under you as your disciple. If only I could be as strong as you have become. Such awesome power. I have an old enemy I must destroy, that must be defeated at all cost. Though the battle is not for me alone, it is for my entire hometown, and Dr Kuseno as well. I fully realize that I am still inexperienced, but now more than ever before, I need incredible strength so I can eradicate the greatest of evils! Dr Kuseno is-" Genos is cut off. Thankfully. My fingers are falling off.

"Enough you idiot! Shorten this stupid story to twenty words or less!!" Yes please do it! I can't suffer anymore!

You know what, forget them! Let's move onto someone else who is important to the chapter!

"Mosquito girl was defeated in battle.? And with one punch you say? Oh well. She was little more than a prototype after all."

The last thing that mosquito girl saw was brought up on the screen in front of our mysterious mastermind.

"Oh it's the new s-class hero."

"Indeed" is his received response from someone unknown.

"I'm sure he'll make a fine specimen. We shall study his physiology. By force if necessary." The person continues. The man has glasses on with only one eye visible. He wears a casual outing suit, not approaching business man level, but definitely better than any run of the mill suit you may find for a cheap price.

The person who he was talking to now approaches him, and though his face is hidden, we can see the number 28 on the shirt he is wearing.

"Send a messenger and invite him here, to this, our House Of Evolution."

Unfortunately we must go back to our duo.

"Here is the short version as requested, master." Thank God! Genos then takes a deep breath and begins.

"Please teach me the way to become strong like you are. I beg of you."

Saitama then becomes serious. Something that will haunt the nightmares of monsters in the near future.

"Genos, how old are you again?"

"19 Sir."

"So young, I'm sure you'll surpass me in no time."

"Do you really mean that?"

"I'm twenty five years old now, but I didn't even begin training till I was twenty two."

Genos is understandably shocked. He gained such power, in a span of three years?

"Fine. I'll teach you, but it won't be easy! Sure you can handle it?"

"Yessir!" Genos declares.

All of a sudden Genos sensors pick up on two things. Someone at the front door, and a high speed object approaching the building.

"Sensei there is someone at the front door, also, another is approaching at high speeds, and will be here shortly." Genos informs Saitama who doesn't seem bothered by either.

The front door unlocks on its own and it turns out to be King, who has a key of his own, after giving one of his to Saitama. He seems to have come from defeating a bunch of monsters, although you would be able to tell not from any blood or injuries meant to be present,-which they are not-, but from the presence of a high speed-camera attached to King's head. He is live-streaming again.

"Oi, Saitama bro, you home?" King asks, peeking his head in. "Oh hey Genos. Glad to see you together again." King and Genos got acquainted shortly after Genos met Saitama.

"Greetings. Also prepare for battle. High speed object approaching will arrive in 3seconds."

Saitama's ceiling is busted open and a praying mantis looking monster enters the apartment.

"Haha! Greetings! I am-" The monster's head is immediately used to paint the opposing wall green with its blood and brain scattering everywhere.

"You're gonna pay for my ceiling…" Saitama angrily grunts.

"Nah dude. He's already dead. It's about time you moved out anyway. I have open space in my apartment building. So just come there."

Saitama sighs loudly.

"I guess you're right. It is about time I moved out."

"So… it seems our advanced agent Kamakuri is down. I can't sense him with my telepathy." A tiny slug mate Mayer says to its partner.

"What? Wait a sec, wasn't he one of our stronger guys?!" The frog partner responds

"Two more outside, master, King, leave it to me.." Genos dashes out to destroy the threats, but they have already been dealt with by Saitama. They are placed headfirst into the ground, and seem to be very well knocked out.

"Don't bust people's ceilings." Saitama scolds.

"Nevermind then." Genos says.

"Enough okay, there is a front door for a reason." Saitama continues, as if they were never unconscious to begin with.

"Saitama buddy, let it go." King says as he appears beside Genos who tried -and failed- to hide his shock. He wasn't picked up by the cyborg's sensors this time.

King walks up to his buddy. "It'll be fine. Just move in next to me."

Both of them are then grabbed by the feet and dragged into the ground, but King, in order to not get his camera damaged, quickly tosses it to Genos.

"Hold on to that for me buddy, this is still recording. I want a full video given to the Hero Association."

"Master! King!" Genos rushes to help, but is stopped by a quick order from Saitama and King.

"Don't I'm fine." Both of them say at the same time.

"I kinda feel like a young bamboo shoot" Saitama follows up.

"Elevated energy level detected" A robotic monotone voice drawls out from behind Genos. A large explosion is then heard as something large lands behind him. Genos turns to see what it is.

'A cyborg?' Genos thinks. 'Could it be?'

"You are not the target." The cyborg says.

"Hey what's going on? I can't see?" Saitama turns his head up to get a peak.

"Out of the way!" The strange cyborg yes and charges at Genos, but is knocked back by King who's snuck out of the dirt by now.

"Hand over the camera Genos. I'll let you fight this guy. He ain't much of a threat." Genos hands the camera back to King.

"The S class hero, King. You are not the target."

"Obviously. Monsters are usually smart enough to not attack me in public."

Genos abruptly charges the cyborg and engages with it briefly. They are then locked in a stalemate, but it's clear Genos isn't putting much effort against this guy.

"Now then, listen. I've got a few questions for you."

The cyborg growls and King decides to turn the camera back to Saitama…..who is still in the ground.

"Uh, aren't you gonna get outta their buddy?"

"Not really, being buried underground is kinda warm."

A large figure then stomps up to saitama and casts a massive shadow on the ground. Malicious laughter is heard as King points the camera up to face the monster.

"You appear to be in what they call a tight spot. Seems like the other one escaped. No matter" The Lion-like beast says.

'I don't think these guys know who I am. They'd be a lot more scared. Or they do know, and they just think they're stronger. Arrogance.' King thinks as he ties the camera back to his head.

"Adequate work ground dragon" It says. Another creature, this one more like a mole, pops it's head out of the ground.

"It complicates things if they put up a fight. Like that one over there." It says.

"Yep. These guys have no idea who I am. At least they won't die from fear this time." King says. The people watching the livestream get excited to watch along.

"Master!" Genos turns to face Saitama.

"You dare look away?! Quite Courageous!" The massive cyborg says as he charges his metallic counterpart. He launches his fist as a massive attack.

Genos reacts quickly though, and counters the attack and blasts it with his flames causing another massive explosion. It is good that City Z is unpopulated. Although launched away, and on fire, the giant Cyborg jumps in the air and attempts to crush Genos upon landing. Genos evades the attack with relative ease and gazes upon his enemy.

"I am the pinnacle of the house of evolution's science. I am Armoured Gorilla, your attacks have no effect." The Gorilla says.

"The house of Evolution? What does it want with my master?" Genos demands.

"That place? Zombieman's from there isn't he? He's been hunting them down for a while now." King says to himself, and by proxy the audience. Now they're taking this matter seriously since this organization possesses the ability to create S-class material.

"That is none of your business, and it is our rule that any who oppose us be eliminated without exception. Therefore, you will now be destroyed" The robotic gorilla proclaims. Genos appears to be unfazed.

" He'll be fine. The monkey is weaker than him anyway. Genos is low S-Class at least, so I'll see if I can get him into the Hero association after this." King then turns the camera back to Saitama who has taken a nap despite the demon level threat in front of him.

" Hey Jerkoff! What's with that stupid look?" Que the loud yawn from Saitama.

" Being in the ground keeps you cool, but at the same time it's nice and warm. I'm sleepy, could you get lost" Saitama is not even faced by this monster's presence.

The monster laughs at him. "It would appear that I need to teach you your place. Listen up! I'm gonna slice your eyes out with these. Then we'll see if you're still such a smart ass. And just so you know, the beast King never lets anyone off easy!" As the monster speaks, it crouches to the ground and points its shark tooth looking claws at the baldy's eyes. Saitama, seeing that a fight is unavoidable at this point, nonchalantly climbs out of the ground like he would climb up stairs. Ground dragon is obviously shocked at the situation since he thought he was properly detained.

Humans don't have the physical strength to do that.

"Alright. Enough fooling around then. Listen up! This is your only chance to apologize! You clumsy oafs smashed up my ceiling!" Saitama demands.

"Again with the ceiling? YOU'RE MOVING OUT ANYWAY!" King shouts. Just about fed up with the whole situation.

The beast king raises to its full height. " Huh, well is that so? Prepare to witness the true power of the mighty b-" The monster is interrupted by Saitama sigh.

"I got dirt in my special pants place." He then proceeds to attempt to pick it out. The lack of fear in this situation is truly uninspiring.

" Hey are you even listening?" The beast demands.

" Wait, let me just shake this out."

.

.

.

.

.

" Are you done yet?" The beast King asks.

" One sec." More shaking of the belt.

King has a few snickers, while the entire audience are laughing themselves silly.

"Ok I'm done"

"Then once again, prepare yourself to witness the true power of the almighty beast King!" The beast then proceeds to make himself bigger. He doesn't get a chance to attack, as Saitama hits him with a fingerflick, sending him through a building."

" This guy is annoying, and I've got a meeting with the association in a few minutes. I don't want blood on my clothes." Saitama drawls. "Can you take this one King? I'll record this time."

"Fine by me. He was starting to piss me off". King hands the camera to Saitama and the audience gets a glimpse at King's face through their screens. He's frowning, no monsters ever survive past that. "Stay close enough so that the quality isn't horrible."

King jumps towards the monster and Saitama follows from a respectable distance at this side. The beast King is shaking off the rubble from the collapsing buildings, and a huge force from Saitama's flick has torn through the clothes and chains, leaving a large red bruise on his chest.

"That damn maggot! How dare he strike me before the start of the battle! I'll show him the might of the Beast King!" It is at this moment that King appears under it and attacks with a devastating kick to the face. He is in Rock Lee's Lotus position against Gaara and launches the Beast King straight into the air.

A loud groan of pain from the monster as King kicks it in the head, spinning it rapidly and vertically before it crashes back into the ground, leaving a sizable crater. King lands in front of the monster as it gets back on its feet with much difficulty.

'I CAN BARELY KEEP UP! WHAT'S WITH THESE GUYS?!' The beast king shouts in his head as he get back in a kneeling position in an effort to stand.

King lands in front of him though, and his hand is in a chopping motion.

"Excalibur!" King's hand is raised in the air and covered in flames resembling a giant golden sword. The viewers are amazed and eager to see what this new attack can do. The Beast King sees this move and is scared into attacking King. It extends its claws out of its paws and its muscles bulge shedding what remains of his shirt.

"Don't underestimate me! I'm the King of the Jungle and won't bow to you apes!" It yells as it begins to charge at King who is still rather unfazed.

"For you to call yourself the King of anything in front of me, is quite presumptuous" Emphasizing on that last word, King rapidly drops his hand in a slicing motion and cuts straight through the monster. And the next 5 blocks behind it.

The viewers online are amazed. There is a large amount of them now, as it's become another thing people come to accept about King.

"That's a lot of property damage. You gonna pay for that or what?" Saitama inquires.

"Who am I gonna pay exactly?" No one lives in this ghost town anymore, so no one's property has taken any damage.

"Right. Forgot about that." Saitama responds.

"What am I going to do with you saitama?" King just shakes his head. The S-Class are all really weird individuals.