OKAY so here’s my Luck of the Irish yume/persona lore. (I tried doing some research on Irish folklore and old history to make this sound more “accurate” but idk so work with me..)
My self-insert is a leprechaun from the clan O’Reilly and she’s the eldest daughter of Reilly O’Reilly + Kate’s older sister. She’s also Kyle’s aunt. She’s always been super adventurous and curious, like she loves Ireland and wants to explore beyond just her clan territory instead of staying hidden in the forest village like most leprechauns do.
So WAYYY back when the O’Reillys were still living in Ireland (like old folklore era), she ends up wandering too far out into the forest one day and hears music. She follows it and finds Seamus sitting on a fallen log playing some melody on the flute. BUT he’s not in his “human glamour” form, he’s in his true Fear Dearg form (the one you see at the end of the movie when he’s turned back into a foot tall). He immediately clocks her presence and is basically like “well now… you’re either brave or lost” and she’s not scared of him at all which instantly fascinates him.
They start meeting secretly in the woods over time and it turns into this slow-burn secret romance. Like they sing together, go on adventures, climb trees, splash around in creeks, get into harmless mischief, etc. Seamus is basically the one who shows her ALL of Ireland besides her clan’s little world and she’s obsessed with it. He also uses pet names constantly (lass, lassie, honey, darlin’) and is super flirty and dramatic even back then.
But obviously the relationship is forbidden because O’Reilly (the grandpa/old guy in the movie) HATES Seamus and Fear Dearg’s in general. He calls him a “petty-wagger” and a “stage Irishman” and basically thinks he’s dangerous and untrustworthy. So the whole relationship has to stay a secret.
The big issue though is Seamus has always had this ambitious “I want to restore Ireland to the old ways” mindset, and over time my self-insert starts realizing he’s not just passionate, he’s like… obsessed with power. Like even back then he had that “I should be king” energy and wanted more control over the leprechauns and their luck.
Then when the O’Reilly clan decides to move to America (during the famine era, like 1845-1852 timeframe), she chooses to go with her family and breaks things off with Seamus thinking it’s for the best. She basically leaves without giving him a proper dramatic ending/closure, which makes it worse because he holds grudges like it’s his JOB.
So she goes to America with her family, tries to move on, and basically pretends her relationship with him never happened. The only person who knows is Kate because she confided in her (since Kate also had her own forbidden love situation with Bobby). Reader keeps this gold ring Seamus gave her though (with his own symbol carved into it) back when they were in the peak of their relationship, and it’s implied it has a magical tie to him (it’s a leprechaun thing trust 🙏).
Fast forward to the movies plot, Seamus is now in America (idk when exactly he came so I’m pretending it was long after the famine era that he decided to go to America as well) running a traveling Irish festival as the “Saint of the Step” and stealing lucky coins from leprechaun clans across the states. But what he’s REALLY doing is trying to steal all their luck so they’ll turn back into full leprechauns, get exposed to humans, and basically be forced to return to Ireland… so he can rule them all as king.
And then boom, reunion at the Irish festival. Reader sees him for the first time in centuries and it’s like the worst “oh my god he’s real” moment ever. Seamus senses her immediately (bc of the ring / their connection) and he’s basically smug as hell because he never let it go. He acts like he doesn’t care, but he’s lyingggg. He’s super petty about her leaving and about her trying to forget him, but he also treats her completely different than the rest of her family. Like even when he’s being villainous he’s still weirdly soft/possessive toward her.
So the whole dynamic is basically lovers → enemies → unresolved yearning, second chance romance vibes, but with Seamus being genuinely delusional thinking once he wins and becomes king, she’ll HAVE to come back and be his queen.
And yeah that’s my Luck of the Irish persona lore ✌️🍀
AHHH I FORGOT TO MENTION!
during the point in the movie where Kyle, Bobby, and Kate go to the chip factory to confront the grandfather, kyle doesn’t just find out he has a grandpa but also a aunt. Cause when Kate ran off with Bobby, my self insert stayed with their dad to help him out with the company. They secretly kept in touch with Kate and they’d send each other updates on their personal lives. So when Kyle does finally run into his grandad like in the movie where he gets chased by security and falls through the chip chute, he meets both his aunt and grandpa. (And finds out later that the guy who’s caused all his family problems and issues nearly ended up being his uncle 💀)
(Credit to the picrew creator)