The Captain of the Special Operating Squad, Levi, had just been told that he has a brother, a twin brother in fact, who cannot be found in their cruel world but in a world who the people there live their lives peacefully; no titans, no walls, no killings and most of all; Free.

This revelation shocked Levi as well as his squad. Now that they know Levi has a brother, they are hopefully considering all the possibilities that the brother is also strong as Levi to that of killing titans. So, the mad scientist, Hange, executed a plan of making a portal to get the unknown brother of Corporal Levi with a helping hand of a certain person.

*-* FIRST *-*

"Corporal Levi!" A dark-brown-haired boy called. "There is a person who wants to talk to you privately. Must have been important." Eren added.

The captain nodded his head in acknowledgement and went out of his room, which by now doing his paperwork. He passed by Eren but still the said young man trotted behind the corporal.

"What are doing, Eren?" The corporal asked unamused.

"I just... uh... want to... come also?" He responded unsurely.

Levi sighed. "Don't just cause any trouble nor interfere in our probable conversation, you brat."

"Yes, Corporal!"

The two walked, exiting the castle they are in and being greeted by the sunny sky as well as the warm air hitting them and a woman facing her back towards them.

"Hey you, what do you want? I'm already here. Make it quick, I have piled works to do." Levi impatiently called. The said woman turned around revealing her flawless face, bright golden eyes and her not-so-long jet-black hair waving against the slight wind.

"Levi... Sorry for intruding you. My name is Lairen."

"And? I don't have time for this shitty conversation." Levi turned to his heel as he began to go back inside as well as Eren but what the woman said-Lairen-made Levi stop and whip his head towards Lairen, shock written on his unemotional face.

"What? Impossible!" Levi was now fully facing the woman who by now is looking at him sadly-probably because she wasn't being trusted nor her words.

"I'm stating the truth, Levi." Lairen persuade. "You have a brother." She once more repeated.

YoungMurderer here!

I just want to clarify things ahead so that no one can have 'brain-twists' for this fanfiction I wrote.

First of all is that, the set time in Kuroko no Basuke is in Teiko days where Akashi is still cute and small(XD) while in Shingeki no Kyojin is where Levi's underground brats is still with him which is Isabel and Farlan but the twist here is that the two brats(XD) is still alive up to where Eren is now with them together with his friends and Levi being the captain.

There is also a twist in Kuroko no Basuke where the Generation of Miracles is close friends throughout the years being in Middle school, no one is going to leave and going to break them apart. Also here, Nijimura is out and not the captain, instead, it's Akashi.

That's all! Hehe!