Prologue:

"Doctor, damage report."

"Even though the computer was trashed in the earthquake earlier today, all but one specimen remains so my work is not a complete loss."

"And the one specimen that escaped?"

The doctor winced because of how calm the delivery of the question was, "It was the experimental nomu-spider."

All-for-One growled, "The one you theorized could potentially fix me without having to rely on Shigaraki?"

The doctor nodded, "I know all the things that went into making it, but getting a hold of them again is going to be a pain."

All-for-One "stared" hard at him, "How hard can it be to find a spider that you can add quirks to?"

The doctor winced, "That one only worked because of its invisibility quirk that the original already possessed, and the original died when we tried to give it more quirks. Which is why I made the clone that I modified using the DNA from every species of spider out there to turn it into a sort of super-spider. Giving it a copy of my life-force, the healing factor, and the bioelectricity so it could send data directly to the computer were of no issue due to its already enhanced nature. Trying to give normal animals human quirks usually brings about their death. It is also nothing short of a miracle how lucky we were with the original spider and those bees we found."

All-for-One nodded with a sigh, "... Yes, the mutagenic steroid producing virus you made based on their honey showed some promise in super-charging the nomu."

The Doctor winced again, "I injected some of it into the nomu-spider before the earthquake, so I am unsure as to the effects it has had due to it escaping."

All-for-One growled, "Then continue the original experiment with Shigaraki and hope he too doesn't escape, Doctor."

The doctor nodded, "Of course, sir."

A certain small spider had been scurrying around for a few days after it had escaped that dark place. It had a small adventure floating on the seas until it found some refuge within a large pile of trash with a large amount of prey that it could snack on scattered everywhere, and it settled down prepared to follow the design of nature and feast on bugs until the end of its life. Unfortunately due to quirks the world no longer followed the usual design of nature.

Izuku Midoriya sighed, "All Might, can I go home early today? Mom is still trying to clean up from that stupid earthquake five days ago."

The skinny All Might, whose true name was Toshinori Yagi, nodded, "That sounds like a wonderful idea, young Midoriya. Please allow me to walk you home."

Izuku grabbed his shirt, shoes, and backpack from beside the slowly growing pile of garbage next to the beach, "Thanks All Might, but that isn't necessary."

All Might rolled his eyes, "Quite to the contrary, Young Midoriya. In the past 6 months that I have known you you have had villain attacks happen near or directly to you no less then 100 times. That is almost a record of an attack a day. Even many pro-heroes do not have it that bad."

Izuke put on his shirt and backpack on and slipped into his shoes, "Sorry for being such a bother, All Might sir."

All Might waved his skeletal hand in the air with a laugh, "It is no bother, Young Midoriya. Shadowing you actually helps me in tracking down villains, and someday that kind of luck will ensure that your hero name will become know worldwide due to the number of cases you solve."

Izuku sighed, "Not exactly why I want to do it, si-ouch!"

All Might turned to him with a panicked look on his face, "Young Midoriya, what's wrong?"

Izuku pulled his hand away from one of the pockets in his backpack and with one look at the large spider on his hand, which was already starting to swell, he calmly replied, "This spider just bit me." With that proclamation he promptly passed out and was caught by the panicking All Might.