Four

Some said he was too young to know everything, some say he wasn't like any children at his age, they say we was too matured for his age to understand somethings never meant to be understand by a mare child like him, they said he was too smart for a child.

And maybe that's the reason why he understand the situation his mother, Alice was in, He understand why he only have a mother rather than both mother and father. Maybe because his father doesn't even know he and his twin sister exist, or maybe even more complicated than what their mother told them.

"Brother"

His sister whine,

"I'm bored"

They are currently in line to meet the number 1 hero. 

Deku.

"Only a little time and we'll finally meet him"

He explain, trying to calm down his twin.

Never once did he ever think his twin was annoying, because he knew it, he was much more annoying to her when he want.

He blink, looking at his younger twin as he watch her play with her quirk, ice.

"What are you doing?"

"But I'm bored"

She didn't stop making crystals of ice

"Stop that! Mom told us never to use our quirk!"

"Are you our mom Sky?"

 "why you--!!"

The two are blinkering before they knew it, soon the line adjusted, still blinkering they didn't realize the two of them was the next in line.

"O-oh! You two stop fighting!"

Midoriya said in panic as he saw a two midgets on each others throat.

And when he realize they're not listening to them, he turn to look at his friend for some help. He turn to look at Shouto Todoroki, with a panic looking face, he said.

"They're not listening to me"

And Todoroki with a sigh, went to pick up the two kids, separating them into each other, carrying them both in opposite arms. 

When someone picked them up, Sky went of full guard, but for some strange reason. He never felt any danger, then in a moment the're set down again, and as they do, his sister ignored this as her attention is now on the number 1 hero who doesn't seems to be in a panic anymore as she pull the young blond haired female, setting her on his lap. Sky on the other hand was lost interest on the number 1 hero, instead. His attention was fixed on the heterochromia eyed man in front of him.

He looks like the man in my mothers dream.

He thought, sending a glare at Pro Hero.

He was the one making my mother cry in her sleep.

He thought once again.

He must be our father.

Shouto in the other hand was having chills, somehow looking at this child reminds him of something he used to had, somehow looking at his child with pure hatred in his eyes reminds him of... Himself.

He was about to speak, asked the child what's wrong for him to look at him with such hatred in his eyes but someone called him.

"Shouto!"

Sky kept his guard up as he watch the scene unfold  in front of him as he watch Shouto Todoroki turn around, on others point of view, he just look like a child watching but minding his own business, but he was a smart child, by the time he saw Shouto getting approached and hugged by a woman.

He knew she must be the reason why his mother told him not to do a thing.