This is of course Platonic, This chapter was actually inspired by the numerous Oneshot chapters involving Countryhumans x Child!Reader in KenyaChu's Oneshot book and anyways I hope you enjoy this Chapter! Also there is cursing in this.
P.S South Korea's Age in this is 2

North Korea was in his Office filing paper work as usual. But as he finished the work on his desk he heard a knock on his Office door and he looked up from his work. " Come in... " He spoke looking at the door and soon enough one of his Soldiers came into the room holding something behind their back.

The Soldier looked obviously nervous and it also showed in the Soldiers voice as they spoke. " H-Hey boss...we um....have a little b-bit of a problem.... " the Soldier said their eyes quickly darting around the room not wanting to make direct eye contact from their boss. North Korea simply rolled his eye and sat his papers down " What did you idiots do this time? " he replied a bit annoyed do to the constant shenanigans his Soldiers get into on a regular basis.

That's when he heard child like sounds coming from behind his Soldiers back. North Korea raised a eyebrow a bit confused " Why is their child sounds coming from behind you?... " he asked still keeping eye contact with his Soldier. The Soldier sweats and gulps audibly before taking something or rather someone from behind their back it was.....his younger brother South Korea?....

North Korea was shocked slightly seeing his brother like this as he switches his focus from his brother to the Soldier. North Korea got up " What happened? " he spoke now focusing on the Soldier once more. The Soldier shudders knowing they are probably going to be in trouble but then spoke " So well....You see me and the others decided to work with our scientists to make a syrim that would make who ever drinks it into a child.... ". Now holding the child South Korea in one arm the Soldier rubs the back of their head with their free hand " And well....we made it so we can make your enemy, America into a kid so he wouldn't be able to foil your plans and such until it wares off but we couldn't just give him a beaker filled with a strange liquid. ".

" Sooooo.....we put it inside a Pepsi can so he wouldn't know but well...South Korea accidentally drank it and now he's a child sorry boss... " The Soldier then added before looking at their boss. The Soldier seen the anger in his eye and watches as North Korea storms over, surprisingly gently taking his little brother in his arms before talking to his Soldier in a dangerous tone " Get...Out...NOW!!! " which promptly made the Soldier bolt off for dear life.

North Korea then sighed before looking down at his little brother in his arms. South Korea looks up at him and smiles reaching up to touch his face. The older Country returned to his desk and sat down with South Korea in his arms and grumbled to himself " What am I going to do with you?...I don't know much about children... ".

South Korea nuzzles into his brothers chest falling asleep soon after. North Korea noticed he was asleep and a small smile formed on his face and got up and started walking out of his office and being silent so he wouldn't wake him up from this little nap. As he walked to his room he heard arguing and sighs knowing it was his Soldiers. Soon as he was making his way up the stairs his Army started yelling at one another and he started getting annoyed. Once he got to his room he laid South Korea gently on the bed before putting the blanket over him.

Once North tucked in his little brother he walked out of the room and closed the door softly behind him. Once he did this he walks to the starting of the staircase and looked down it and seen his Soldiers yelling and arguing with one another. He sighs annoyed and then yelled at them angrily " WHAT DO YOU ALL THINK YOUR DOING YOU FUCKING LITTLE SHITS!?! " which caused the Soldiers to turn to look at him. They then look at one another before starting to look around and stopped arguing and started acting like they were not doing anything.

North Korea signs face palming " Good now stay like that or I'll execute all of you... " and after they saluted to him he turned around and started walking to the bedroom. He gets to the door and opens it soon poking his head through the door and looking over at his brother to see if he's still asleep or not. Luckily he was and sighs softly before walking inside the room and closing the door behind him and lays down beside his little brother.

North Korea yawns slightly and shuts his eye. Deciding that he should sleep here so that if his brother needs him he will be there. North Korea soon felt sleep wash over him and soon he was out like a light being exhausted from work but as he fell asleep his said softly " Sleep tight brother... ".

~ The End of this Chapter ~