You've been best friends since the Hunter Exam and you've become like a family together, but after the summer break you all had to go back to school of course

Now in the dorms after you all caught the flu... because of you of course... and now you're all quarantined in the dorms.

Killua was almost fine, and Gon kind of, but you were the one who caught the flu, of course, because the weather started to get colder and you were the most sensitive to the weather among them

Killua: “Ugh, I'm bored, why am I quarantined with you, I'm fine, hmph”

Killua grumbles in annoyance

Gon: “Oh come on... at least we're together, yeah?”

Gon sneezes

Killua rolls his eyes playfully and throws him a box of tissues