Gon's Sister? (Killua x Reader)

Hospital

Your point of view~

"Gon! Gon!" I shouted as I ran over to Gon. "What is wrong with him?" I asked myself.

"We need Leorio here as fast as we can!" Killua said. He picked up the phone and called Leorio. "Get your ass over here as fast as you can! Gon just collapsed and we don't know the cause!" Killua shouted into the phone.

"We are on our way...keep me on the phone. First I want you to check if he's breathing." Leorio said.

I saw his chest move up and down. But he was breathing very heavily. "Heavily." I said.

"Now feel his forehead. Is it warmer than it should be?" Leorio asked.

I put my hand on Gon's forehead. "What the hell? It's ice cold." I said. "H-His whole body is pale...he's never this pale..." I said. I started to freak out more and more.

"Hmm..." Leorio thought.

"Leorio, what do we do?" I asked.

"I'll have to see when I get there. Just keep him alive..." Leorio hung up.

"Huh? Keep him alive? What do we do?" Killua screamed at the phone.

Then tears started falling down my face. "This wouldn't be happening if I had never came back here. It's all my fault."

Killua looked at me then joined me next to Gon. "Y/n...it's not your fault. It's Gon's for being such a stupid idiot. He was the one who followed us here. And how could you be sure it wouldn't happen over on Whale Island?" Killua explained. "Leorio will figure this out...trust me." Killua said as he kissed me on the cheek and my face turned red a little.

"Um...sorry love birds but we should keep an eye on Gon..." Milo said.

"Don't ruin the moment!" Killua shouted at Milo.

A few minutes later, Gon started breathing heavier. Then Leorio barged in. "Gon!" He shouted. He ran over to Gon. "You guys help Kurapika with the body, I'll take care of Gon." Leorio said.

"But..." I paused.

"Y/n, he's gonna be fine, just do as I tell you too." Leorio said.

I wiped my tears from my cheeks. "No. I'm staying here with Gon."

"Huh? Y/n, Kurapika need hel-"

"So does Gon and I'm not just gonna sit back and watch this."

Leorio gave a small smile. He brought out his tools and started checking all over Gon. He took off Gon's top. "He's breathing really heavy. He's ice cold. This is some kind of nen poison." Leorio said.

"N-Nen poison?" I asked.

"I'm no expert with nen but this isn't regular poison but with nen." Leorio explained.

"Will he be okay?" Killua asked.

"Of course. He might not wake up for a couple of days but he will be alright." Leorio said. "We just need to get him to a real hospital so he's comfortable.

"I know where the closest hospital is. You should let me take him and you guys should take care of the corpse." I said.

Leorio nodded.

Again- sorry it's so short- i will make the next part a lot longer and make sure it's more interesting but I promise you guys that I will be updating shortly.

To be continued...

Thanks for reading!