Soulmate AU
Soulmate/Red String Of Fate Au
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Synopsis Harry x Sun/Moon.
Harry and Sun/Moon are soulmates; that’s literally it.
(Spark/”Zing”, Words on the skin, The Red String (of Course), something else)
Scenario 1) Harry and Sun/Moon meet one another when Harry is just a child when he’s dropped off at the daycare by his aunt. Sun freaks out once he figures out Harry is his and Moon’s soulmate because he’s still just a child until Moon calms him down and reminds him they don’t have to do anything about it yet; Harry will grow up and then they can, at least try to, formally court him.
Scenario 2) Harry meets Sun/Moon after the Plex burns down, having followed The Red String to America and the Plex once he was able to do so.
Scenario 3) A combination of both: The Plex isn’t burnt down and Harry, older, meets Sun/Moon in the daycare after following (the Pull/String/Context Clues, etc.) to America. Sun freaks out once he realizes who Harry is and Moon calms him down. Maybe Harry gets a job at the Plex to be closer to Sun/Moon and spend as much time together as they can?
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If you want to use any of these ideas but for different pairings, Harry x Monty, Harry x Freddy, etc., go ahead.
Also, any other soulmate parings are up to you.