I think we all fear Killua’s reaction the moment he finds out about Gotoh’s death, because we’re all assuming it’ll lead to tragedy, pain, revenge and self-destruction. But I truly believe that when it happens, it’ll be with the purpose to directly parallel and contrast Kite’s death.
I like to think that when Killua finds out, he’ll be with Gon. Gon’s first instinct would be to crash into Killua, hug him, and never let go. Because he knows how it feels. He knows, he’s lived this exact situation before. He knows about the heartwrenching pain, the helplessness, the feeling of emptiness, the anger. He knows how lonely it feels. So he’d hold Killua close to him, and swear to never let him go.
It’d hurt. Killua would cry, be angry, swear he’ll kill Hisoka. Swear he’ll avenge Gotoh. But Gon wouldn’t let him. He’d never let him walk that path.
Because Gon has been there. He’s taken that path to revenge before, swearing he’ll avenge Kite no matter what. And he knows that if Killua swore to kill Hisoka, it’d be the same doomed path of revenge and self-destruction.
And that’s why it’d directly parallel Kite’s death. When Gon bottled up his feelings and didn’t let Killua in, Killua would openly accept Gon’s help. When Gon handled all the pain alone, this time they’d share the burden.
This time, they learned their lesson. Instead of shutting the other out and actively seeking revenge, it’d show letting in and acceptance. It’d show that Gon’s past actions were a self-destructive way of grieving, but that this is different. Because they both got each other. Killua isn’t alone, and they can do this together.
Killua doesn’t need to seek revenge and go down the same road Gon did, so Gon would try his best to help him and mend his broken heart with everything he has.
It’d demonstrate both their growth and a healthy way to deal with grief, and directly illustrate what could’ve happened if Gon let Killua in during Chimera Ant Arc.
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