Because You're my Best Friend.
5 parts Complete "...Gon, there's nothing I want more than to stay by your side, but if my selfishness is the means of your pain, I'll gladly turn back to the shadow if it means you'll continue to shine..."
Killua begins having nightmares which leave him crying out and gasping for breath.
Gon does what he can to comfort the friend he knows is too embarrassed to open up to him, but when the nightmares get so bad he ends up hurt and Killua no longer trusts himself, the strength of their bond is put to the test.
This fic got a MAJOR redo. Plot is the same but I basically rewrote the entire thing. I hope y'all like it more now if not just as much :)
[Third Person, Past tense]
[Fluff with major angst]
[Platonic Soulmates]
[Graphic depictions of violence]