Chapter 1: Humble beginning

Izuku Midoriya wanted to be a hero so much. Ever since he watched that All Might video for the first time, he knew that one day he will also save people with a smile on his face. He was hoping that he'd get a powerful quirk, something that will let him keep up with top ranked Pro Heroes. In a way, his wish was granted. His quirk would be like nothing else.

It all started during his fifth birthday. When he went to sleep, he found himself in a strange place. It was a large house, comparable to Kacchan's home in size. In the kitchen, there was a blonde man clipping fingernails. He was wearing a set of purple suit and pants, as well as a green striped shirt and a neck tie with a bizarre ornament. After noticing Izuku, the man started talking

"You are Izuku Midoriya, correct?"

"How do you know me? Who are you?" the green head asked with palpable terror in his voice.

"My name is Kira Yoshikage. I am… I was a humble salary man back in the day. As for knowing your name, there is a paper stickied to the refrigerator. It explains some things." Kira pointed his finger at the fridge.

"Kira? What a strange name for a Japanese man." Izuku thought

"I head that!" Kira said with a hint of anger

"So.. Sorry." Kid mumbled

Izuku walked up to the fridge but was too short to reach the paper. Kira had to come and hand it over.

Rules of the mind space:

1. Guests can not harm the host (Izuku Midoriya) or each other.

2. Guests can not lie, but they have a right to remain silent.

3. Guests can not control the host's body in any way.

4. Guests can lend their special abilities to the host and take them back at any moment.

5. Guests can selectively share the senses of the host, as well as hear his thoughts.

6. Host can not prevent guests from enjoying rule 5.

7. Host can not evict the guests, nor can guests leave on their own.

8. If host dies, so will the guests.

"It says guests, not guest, but I only met you, Yoshikage-san. Do you know where the others are?" Izuku scratched his head.

"No, and honestly, I would prefer to be your only guest. Nothing ruins peace and quiet like having a ton of roommates. Now, I want to ask you a few questions, kid. Oh, and just call me Kira"

"Uh, sure!" The green head gulped

"Alright" Kira fixed his tie. "Did you create this place?"

"Eh, I don't know. May be? I have never been here before. Sorry, sir"

"Do you know anything about me?"

"Nothing, except what you just told me."

"This is not good." The blond sighed "Do you know what is a stand?"

"It's when you stand on your legs?" Izuku asked after some thinking

"No! Ok, look, rule 4 says I can lend you my special ability, most likely my stand. What will you do with it?"

"It depends on what your stand does, Kira-san."

"Makes sense. It's a feline humanoid creature that can turn objects into bombs upon touch. I call it Killer Queen. It can then detonate those bombs by making this gesture" Kira pressed his thumb against the rest of his hand, as if he was holding a detonator."

"That's awesome!" Izuku screamed enthusiastically. "It's almost like Kacchan's quirk!"

"What is a quirk?" Kira raised an eyebrow.

"Oh, that's how people call special abilities, sir. May I ask you something?"

"Soon, kid. First tell me what will you do with Killer Queen?"

"I will show it to other children in the kindergarden! They applaud me like they did my friend"

"This is what I feared. Of course a little kid would try to hoard attention" Blonde face palmed "Wait, how common are stand, I mean quirk users around here?"

"They are the majority, sir. Only 20% of people are quirkless."

"This place must be a nightmare to live in" Kira thought to himself.

"Alright. Listen, kid, I hate being a center attention. I would much rather live a quiet life, with no one bothering me. It's obvious that you and I are different in this regard. If you want to use my Killer Queen, you'd have to do something in return"

"Of course, sir" The child nodded.

"First, ask your parents to make a katsu sandwich with deep fried pork. It's my favorite. Second…" Kira stopped for a moment. "I want you to kiss a hand of the cutest girl in your kindergarden"

"Sure thing, sir. I want to ask you something too."

"We are running out of time, let's limit this to 1 question for now."

"You said you were, not are. Did you die, sir?"

"I'm not sure, but probably yes"

"I'm sorry, I shouldn't have asked"

Before Kira could say anything, an alarm bell woke Izuku up. Izuku tried to shut if off without standing up. Suddenly, a strange being emerged from his body and turned off the alarm. Green head took a good look at this creature. It was a pink humanoid a cat like head, about the same size as him.

"You must be Killer Queen, right? Yoshikage-san's quirk?"

KQ nodded.

"You don't talk? That's a pity"

"You wanted to tell me something?" Kira's voice resonated in his ear.

"Kira-san? Where are you?"

"I'm still in your head, kid"

Suddenly, Izuku mother's came into the room.

"Mom, look! I finally got a quirk" Izuku pointed to the kitty cat. "I'll call it Killer Queen!"

"I'm so glad, Izuku!" Inko said as she hugged both the child and the stand. "We should go to the doctor soon to register you quirk."

"Mom, can you please make me a katsu sandwich with deep fried pork? My, em, friends told me they are tasty."

"Anything for you, my child!"

In the kindergarden, everyone was staring at green head and his new quirk.

"So what you finally got a quirk, Deku?" Bakugo asked with excitement.

"Yes, Kacchan, and it can make explosions, just like your!"

"Oh really? Care to show me?" Katsuki grinned.

Instead of answering, Midoriya let Killer Queen take a coin from his pocket, throw it into the air and explode it, creating a miniature firework.

"Wow! That's awesome!" Everyone was excited and asked Izuku to do it again, but the supervisors told him to stop because it was "too dangerous". For some reason Kacchan avoided him for the rest of the everyone's parents arrived, Izuku walked up to a pink skinned girl with horns.

"Mina, may I please kiss your hand?"

"Of course, Izuku" Mina giggled. "But only if you let me pet Killer Queen"

After a long a day of joy, Izuku went to sleep so he can ask for questions to his guest. To his surprise, there was a different blond man sitting on the couch, tapping his finger against his leg. Unlike Kira, this man was tall and muscular, his skin was a bit pale, his clothing was consisted of black and yellow and there was an inexplicable aura of danger coming from him.

"H-h-hello, s-s-sir! Mm-may I ask you n-n-name?" Izuku could not contain his fear at all.

The buff blond smirked and said "Kono DIO da!"