Third Person's P.O.V
"Remember what that being said in the past? It says either one of us can travel back and fort between our dimensions— Only us... and some material stuffs... So, how exactly do we bring the kids in your world?" (Y/n) clarifies with her soon to be husband in the last minute after preparing their luggages.
"X told me that once they knew the fact that I came from another realm, the kids will receive that being's grace automatically since they're our children. That being promised to give us a happy future— We can take our family whether it's your home or mine."
"What being?" The kids murmured to themselves.
"I don't know about this.. Why're my parents so indecisive." (S/n) shrugged his shoulders while carrying his travelling backpack, not knowing if he'll trust the two anymore.
"I'll go ahead!" (Dt/n) instantly transported out, vanishing from their naked eyes.
"Wha- H-How?!" Killua exclaimed in surprise.
"It's like you said.. Why're you so shock?" Andrew laughed.
"Looks like your daughter have some incredible instincts." (Y/n)'s best-friend sat next to her fiance. "Promise me that you guys will be happy." She bids while engulfing (Y/n)'s body with a parting embrace, sending her genuine wishes and sentiments through the brief act.
"Finally, the whole penthouse and your riches will be mine." Her conceited brother grins.
"Silly. We'll be back for visits.." (Y/n) huddled the two for a short hug. "You better take care of each other."
"I'll miss it here.." (S/n) seemed like he's about to weep.
"Who do you like more? Andrew or me?" Killua smirked, ruffling his son's hair.
"Andrew.." He clings between his uncle and auntie.
"What?!"
"Come on." She beckons the silver haired males. "My daughter's gonna get lost there, alone by herself." She rubbed her wrist with alcohol, erasing Killua's name as she sent him out first.
~
As soon as (Y/n) stepped in the certain world, Killua proposed on spot, kneeling one leg for her.
"Be my fated girl for eternity, (Y/n) (L/n)."
It's been decades since she left this fantasy.
The dumbfounded lady didn't expect she'd be summoned exactly at their wedding ceremony. The mischievous male had prepared everything beforehand.
So, this is why he wanted us to wear formal attires? For this event... She thought, herself.
"I'll love you 'till you drop." Before they even exchange their marriage vows and rings, she kissed her groom in front of the priest, and the whole audience, including their children.
Their close acquaintances and friends in this so called hunter x hunter dimension cheered the couple as they begun the simple, yet elegant and private matrimony. However, the Zoldycks weren't invited.
—
*Time-skips— A month later*
The lovely family lived in their own cozy house at Whale island, having Gon as their neighbor.
It's currently 7 am.

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Two Worlds: One Fate [Killua x Reader]
FanfictionIF YOU'RE A DIE-HARD KILLUA FANGIRL, THEN THIS IS FOR YOU. *UNDER EDITING* "You want me to continue on existing?!" Killua scoffed, shrugging her hand off. "To what? To play love story with you now?! (Y/n)... My life is a f*ckn anime!! Everything...