Consider her hometown is the same town as the one he had his sexual liaison with the mistress in.
Their age gap adds up, he is old enough to be her biological father.
How do u know thats how the story goes? Don't get me wrong it's not that I don't believe you, I was just curious if you read a raw somewhere.
Shit, they are step-siblings? That's..off-putting. Though i assume the author will find a way to make the readers sympathise with these characters.. also, he had the affair with her mom?
Wth? Stop making assumptions bro. Where did you get this information from???
She is the daughter of his father's former mistress, who upon his father's death, married a wealthy man and passed the child on as 'his'. The taboo is they are related.