Symbiosis - A My Hero Academia Story

Emergence

Heads Up! This fic is in no way scientific or biologically accurate. I kinda just left the reasoning of the actual fusion itself to just 'Anime Bullshittery.'

Izuku Midoriya, a boy with a usually unwavering spirit walked alone through and underpass holding the charred papery corpse of what was his 'Hero Analysis for The Future' notebook. With each step strands of black charred paper flake away from the corners and edges of the tarnished paper.

'Kacchan's right. I shouldn't apply to UA. How would I even get in. A 'Useless Deku' like me could never even dream of it. How could I have been so stupid.'

The juniper haired boy continues to walk, deep in his self doubting thoughts, so deep in his thoughts in fact that he fails to recognise the inverted shower of green thick substance flowing from a nearby sewer grate.

'As much as he may be right, no one should ever tell another person to jump off of a roof! What if I had actually did it? How would he feel then? Tsk, probably wouldn't care...

Why do I feel like i'm being watched?'

"Hey kid!" A warbly voice rings out, eliciting a sharp reaction from the uniformed teen, accompanied by an even sharper yelp of surprise. "Looks like today ain't your day. Now c'mere, I need a disguise to get away from him."

'A disguise?! What is this guy talking abo-' The boy's thought is cut short by a sudden lunge from his aggressor. As if out of instinct however, Midoriya leaps to the side, landing roughly on his side, further scuffing up his charred uniform. "H-Hey! Why are you doing this?!" The schoolboy's voice warbles as he raises to his feet.

The villain doesn't move an inch as his eyes and mouth emerge around the other side of his... body? "Do I really even need to answer that?" His gargling voice utters with a rising snarl before he surfs swiftly towards the teen boy.

Midoriya yelps as he dodges again. If there is one thing Izuku Midoriya was good at, it was dodging hits.

Realising he failed to grasp the boy again, the villain lets out a raspy (yet somehow wet) roar of anger. "Y'know kid, you've got quite good reflexes, I might have to just keep you long term."

"I-I'll never let you-" Izuku begins to say as he attempts to stand up before his knees buckle and he falls to the ground weakly. 'No! Get up! He's gonna take your body!'

Before the forest haired teen could think of a plan to escape however, he was already in the cold, damp grasp of the sludgy substance. "This'll feel less painful if you don't struggle kid. No one is coming to save you. Got it?" He says as he rises his circulating arms up and around the defenceless child's mouth and nose, slowly seeping into his airways.

'No no no quick Izuku, think! WWAMD! What Would All Might Do?' The plans began rushing through his head as he tried to piece them together and make sense of them, but with every passing second his focus wained and his eyes grew heavier. 'I... can't... think... straight...i'm... sorry... mom...' His sinuses burned from the invasive liquid. He could feel the sludge seeping down his throat, spreading through his veins. His vision went black.

———

The world was still dark. The foul stench of sewers and negativity filled his nostrils. He could feel light slaps against the right side of his face.

"Young man? Hello? Young man wake up!" A drowned out voice said, as if he was underwater. "Are you ok young man?"

The teen's eyelids cracked open, a blurry figure in front of him, he could make out his blonde hair that seemed to be shaped into a 'V', a white shirt and his- wait, hair shaped like a V?