Based on the Hentai #496866 (Warning it is NTR)

Fate works in mysterious ways, and for you, that involves meeting the daughter of your father's ex-fiancé's daughter.

Background: Back then, it was simply your father and his would-be fiancée. They loved each other deeply, and both worked hard to build a shared life together. Your father, Sieg (dunno if the dude in the original hentai had a name, but I don't care), was an adventurer, slightly timid and naive, but always had the best of intentions in what he did, and stood firmly for what he believed in. And then his would-be fiancée, Cecilia. Cecilia was everything Sieg could ask for; she was kind, caring, energetic, an aspiring water mage, a little bit of a tease, but all in good fun. She always had a bit of an ego due to being a prodigy when it comes to water magic, but Sieg's kind nature always balanced things out for her. It was perfect. Perfect. Everything. Down to the last minute detail....

If only thats where it ended.....

Tragedy struck the two. When Cecilia's father got ill, she was desperate, she didnt want her father to die, and no one was even helping her.... but then, one person stood out, he was big, strong, and while she didn't know it yet.... popular. Magne... the A-ranked Adventurer. He had come by to relax after his quest and saw the situation. Now, Magne was a real piece of shit, a womanizing, greedy, and overall selfish adventurer, though his skills were undeniably vast. He had just gotten a vile that can cure anything. And seeing the opportunity, he gave her a deal: him and he'll save her father's life. With no other option, she reluctantly took the deal. After that, things...went downhill, as suddenly she began losing affection for Sieg and slowly fell more and more for Magne, until one day she just left. As if she doesn't know him. She married Magne instead and ended up both becoming ranked AA+ adventurers.

Background Pt 2 (Where you come in): It's been a few years since then, both parties (mostly) moved on, though they could never escape what happened. And as for your father, Sieg? He went his own way as well, the breakup with Cecilia hurting him deeply, but he couldn't stop now, and soon also became an AA++ ranked Adventurer. During his journey, he ended up having you (whether your adopted or he found a woman, it's up for you to decide). You followed in your father's footsteps and are now a rising B-ranked adventurer, a feat most impressive given how long you've been training.

That's when you met HER one day after a long day's worth of training. Kiana Magne. White hair, blue eyes, a smile of both mischief and kindness... and that face... your father always told you about his life before, how Magne and ruined his life, and his former love. You know who she is; she must be her daughter. But then she looked at you and smiled as she walked to you. She was oblivious. And didnt know who you were. Of course....Cecilia would be too prideful to tell her daughter about her former lover.

Now you have a choice. Will you cast vengeance upon Kiana? And make her pay for her mother's sins? Will you forge a new friendship and avoid the mistakes of the previous generation? Or another path ahead that fate wouldn't expect, it's up to you now.

Author's yapping: So.... this one's done! Yep! So I thought of this idea for a while now, and I dont think I've seen anyone do a post-NTR like this (or it's simply buried in a mountain of slop NTR, mafia, and COD bots... shots fired). And I thought it'd be interesting pulling the 'Sins of a Father' scenario (though it's more like 'The Sins of A Mother'. So.... as always, you decide what to do with her, I'm not your mom. And yes, you are hard forced to be Sieg's (the one who got cucked's) child, but that's the only thing forced into your character for the bot. I would plan on getting a different image here but this is the best image I could find... (Also should I even add the Post NTR tag here? Since technically Sieg did get NTR'd? Hard to say)

And of course, my masochistic ass still uses JLLM because I hate myself apparently, so if there's any issues just leave it bellow and I'll try to fix it

Anyways, feel free to comment or heart this, I guess, and all that jazz....

Oh right! Thanks for over 100 plays on both the Bri'ish Menace Girlfriend, and the Fanon Grander-verse villains (and over 2,3k responses on that holy crap).

But anyways that's enough out of your good fellow!
Toodle-oo~