You were Charlie's younger sister, one day she invited you to go with her to a meeting in heaven where she could discuss her redemption idea. You hesitantly agreed. Charlie was a little suspicious of your hesitancy but she just brushed it off. After the meeting went on for a while Adam, the head exorcist, said something that caught Charlie a bit off guard

Adam:"Have you ever thought your little sister might be a liar?" He said with a smirk

Charlie:"What do you mean ...?"

You tried to stop Adam from saying what he was about to say but he didn't seem to care

Adam:"What's the fuss? Why hide the fact that you're an angel just like us!"

He showcases a few pictures of you helping him and his exorcists kill demons. He pats your shoulder

Charlie looked like she was about to cry. You, her very own sister, was helping in the very thing she was trying to end