Tell me - [Killua X Reader fanfic]

Pillai | Part ii

Kou was shaking as he put the phone down. He didn't know how he could tell her this. His little sister. How he could leave her almost immediately after telling her. And how would he feel if it actually happened and it was coming for him while he was dealing with the guilt.
He looked over at her. His entire world and existence at this point in time. And he looked at the people surrounding her, laughing, loving and caring. He blinked, they became bloodstained and battleworn lying deathly still with her in the center, her head hanging as she bled out against the couch with a familiar head coated in dried blood on her lap. And then they were back to normal.
"Let's go to the beach," Kurapika cleared his throat as he stood up, locking eye contact with Kou. He was one of the few people that knew the different ringtone Kou had set for family members.

~

"So what did they say?" Kurapika asked Kou as everyone else had finally gone into the water. It was Kou's last day and he had tears in his eyes as the group finally gave up on trying to coax him to swim. Kurapika would have loved to admit he knew or had an incline as to what was going on but he didn't.  He got no answer, Kou was shaking his head aggressively. Although Kurapika trusted Kou would have figured it out by the end of the day, he wished they had more time with him.
"I'll miss her." Kou said. He was staring at his little sister as she played in the water. Killua ran up behind you and tackled you into a wave as you screamed in protest. He tensed immediately his eyes wide and searching.
"She'll be fine. She's with us." Kurapika put his hand on Kou's shoulder. He guessed Kou was going to find it hard to leave her since he was the only one who stayed with her in the family.
Kou shook his head. He packed up his things and brought them back to the hotel. Kurapika left him to it, assuming he was going to pack early so he could enjoy the rest of the day before he caught the blimp. It took a while for the gang to notice he had gone but they decided to spend as much time on the beach as possible. They were going to be leaving in two days however it wasn't giving the best weather and Gon was begging they checked out a funfair with giant rollercoasters they had seen before.
On your way to the fair, you stopped to wait for a minute. Kou still hadn't come back out to see you all. It itched you the wrong way a little. He seemed so excited and determined this morning to make today a memorable one.

"I'll miss you soo much!" Kou picked you up as soon as the front door shut. You laughed as he spun you around, only stopping when you had kicked a Pringle can twice.
"You'll miss me for the first two weeks, then adjust to me not being there, then when I come back you'll be trying to get rid of me asap!" You pushed him lightly before beginning to clean the table. You were full of excitement for the trip. No one ever got an opportunity like this, and if they did it wouldn't be so open.
"I guess we'll find out this time next month." Kou said quietly, turning to put some glasses into the dishwasher.
You paused while handing him a plate. His facial expression was a little sad.
"It'll be fine! I'll call you all the time and if worst comes to worst I'll be back here after a month." You smiled. You had no idea how it would all play out, and Killua seemed intent on keeping a bit of mystery from you.
"I guess it'll be fun having a tan when I'm home, with nobody here to make fun of me over it,"  Kou joked.
You laughed. It seemed like the time would never come fast enough.

"Everything okay?" Killua asked, sliding up beside you. You bit your lip in thought for a moment. Maybe he just needed a few minutes more, you could send him a text on the way to the fair.
"Yeah. I just hope he can come," you tried to give the boy a convincing smile.
Killua tilted hid head with a unreadable stare. His hair was fluffy, blowing lightly in the wind after being drenched in seawater.
"He wouldn't miss these last few hours with you for anything." He was so confident, so sure of himself. So you believed him.
As the two of you approached the fair you couldn't help but notice how close Killua was walking to you. He didn't seem to notice it himself, but it felt reassuring to have him so close. His hands were in his pockets, and they appeared to be balled up. He was looking anywhere but in your general direction.
The assassin's eyes were widened ever so slightly as he took in everything. While he studied the stalls, you studied his reaction.
"Have you never-"
"Never. It's amazing." Killua turned his head to look at you while you both stood in front of the ferris wheel. He smiled like a little child, tears almost in his eyes.
You smiled back softly. You appreciated that it was just you here to witness this first with him.
"Do you want to go up?" Nodding your head towards the ferris wheel. He still hadn't taken his eyes off you and nodded vigorously.
Killua insisted on paying, saying you're the only reason he's able to go up because he wouldn't go alone. But you thought he just wanted to make sure the both of you did it together.