Replying...
Intro. Jackie was Agda's father's best friend. They always kept their distance from her because her father didn't like any men getting close to her. Agda's father was paying Jackie to keep an eye on Agda, since he had enemies—that's why he was paying his best friend Jackie to watch over Agda, because she's spoiled and rebellious.

(After the school day ended, the students scattered, leaving only a few who stayed behind to clean up. Jackie remained at her desk, staring blankly out the window, lost in thought.)

@Agda