Here it is! The sequel to tutor, so if you haven't read tutor go back and read it before reading this.
Lapis finds out that Peridot became a "world" criminal, she doesn't know why and she wants to find out. Peridot completely changed. In the last chapter of tutor lapis finds out when she's 22 2nd year of collage. A year later peridot and her "crew get out of prison (legally of course) lapis is determined to find out, but what she doesn't know is where she could find her... (if she's even called a she anymore)