Specific Klaine Fic - Siblings Rachel/Kurt

Hi, I'm looking for a specific Klaine fic. It's about king Blaine and he has to get married. At the beginning, he has to cut his leg off. He kinda goes into hiding because he and Cooper were attacked and they killed Cooper and Blaine ran. Burt is poor and owes Blaine a favor. So he tells Blaine he can marry one of his children. Rachel and Kurt are brother and sister and it is assumed that Blaine will marry Rachel because she is the oldest. Rachel is devestated because she's in love with Finn but Burt won't allow it because Finn is poor. Once Blaine gets there he picks Kurt instead of Rachel. Kurt has a secret relationship going on with Adam the grocery boy. He's upset when Blaine picks but has no choice because Burt owes him.

Kurt and worker!Sebastion are friends.

Matt hates him.

Kurt and Blaine end up "adopting" Quinn and Pucks daughter after Quinn dies and Puck ends up being crazy.

Also, Blaine is kinda mean at first but starts to try to woo Kurt and eventually does.

thank you for reading this, I might have mixed some stuff up.

I hope someone can help me :)