Shikinku
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Summary
Whale Island has never felt so small and isolated as right then, standing next to Aunt Mito’s letterbox holding a postcard from someone he’s suddenly not sure he’ll see again for a very long time.
After parting with Killua at the World Tree, Gon returns to Whale Island, weighed down with regrets. Sporadic postcards from afar are now his only connection to his best friend, fragile threads stretching across the vast distance as he tries to untangle what Killua truly means to him. As he drifts in the ache of separation and an uncertain future, darkness stirs on the horizon and threatens to draw them back together - whether they are ready or not.
My attempt to fill in the gaps for Gon and Killua between the World Tree and the Black Whale, with some creative liberties taken!
Beautiful accompanying artwork by sxrah_twt for this fic: Postcards - inspired artwork <3
Spotify: Postcards songlist
Bookmarked by Shikinku
16 Oct 2025