Fallen angel brothers

Why do I have to do this?

Apparently after Castiel talked to his father, everything went more bad than ever. Now he and Uriel have to track down one of their sisters, Anna. Anna had been with the winchesters ever since her escape from the asylum. 

The Winchesters and Anna were in the cabin when suddenly Uriel and Castiel walked in, but Castiel didn't make a single eye contact with Anna. "You want Anna? Why?", Sam defended Anna."Whoa, whoa, whoa. Okay, I know she's wiretapping your angel chats or whatever, but it's no reason to gank her". Castiel looked depresses and he need to let it go but Jimmy able to calm castiel down, he felt lucky to have a vessel like Jimmy. "Don't worry, I'll kill her gentle", said Uriel. Anna looked at Castiel as she felt a bit disappointed about what father had made him. "Castiel, it's me Anna, remember? i used to take care of you before Zachariah-", 

"Shut up woman, you have no rights to say that", Uriel didn't want to continue the long stpry besides all angels knew about Castiel, only he wasn't ready to know. "You're some heartless people, even for being an angels". Castiel was done with the insults and said "As the matter of fact we are, but some are already becoming disobedient, now I'm going to ask you nicely just give her back before bad things happen" 

"So what? Anna's an innocent girl ok cas? Please", said Sam who was disappointed to hear what Castiel said. Anna on the other side felt really bad for Castiel, he was too young to involve in this type of situation, but he had potential physical side not mental side. "She is far from innocent Sam" Dean looked at Anna knowing what he meant. "What's that supposed to mean?", Uriel had enugh of the conversation as he took Ruby out of hiding and threw her against a wall, "It means she's worse than this abomination you've been screwing. Now give us the girl.

"Cas, please, you don't have to do this", Castiel touches Sam's forhead and he falls to the ground while Dean and Uriel having their fight but a light just suddenly appeared and Castiel and Uriel disappeared. "what the?", Dean quickly find Anna in the back room made a sigil for sending angels away. "Are they--Are they gone?", Dean noded and wondered how did she do that. "Mind telling me how did you that?"

"I don't know, I just did that". Everything went silent, Ruby helped Sam to get up while Castiel and Uriel was in a forest. "Castiel, you should have got Anna when you had a chance, it was our mission to-". Castiel punched one of the trees. "Uriel, I do not want you to say a word. I know whatour mission was I don't want you to keep reminding me about it" Uriel rolled his eyes as he ignored Castiel's attitude. "I want you to be honest with me Uriel, why did Anna said that she took care of me before Zachariah, what did he do to me?", Castiel waited for his answer but Uriel was already gone and Castiel sighed as he was pissed.