Basicly, It's kinda after Stuck Together, which was officially released online as of today, and well, Topaz Is about to be hit by some kinda ray from a HW machine for being a traitor or something, but at the last second Aquamarine shoves Topaz out of the way and gets hit instead, and Aquamarine poofs. She reforms, but the machine messed her gem up and now Aquamarine's blind.
And now, Aquamarine won't admit it, but she depends on Topaz to be her "eyes", and is almost always on Topaz's shoulders. When she's not on Topaz's shoulders, she's EXTREMELY clumsy. Not "Ohhh I'm a clumsy girl who crashes into boys and make our books fall" clumsy, but "Somehow manages to crash into LITERALLY EVERYTHING as if in a drunken stupor" clumsy.