All of the serpent squad were made on homeworld by the superiors to be living weapons, but it sorda kinda backfired

Black was the first to be created and takes more of the leadership role, she hates to tell lies but wants to keep everyone safe, has hidden stress about the team and what will happen if they screw up, has a fondness for yellow but hides it pretty well, the most secretive, just wants to be honest with herself, cunning, brave, strong, and hater of those who would hurt her beloved squad, she is a tough cookie

Yellow was the second to be made, she's upbeat, optimistic, loving, kind, but can be impaitient and can have tantrums, loves making her squad see the bright side of things, hates being lonely and upset, she's one happy gem

Red was the third one created, he's devious, smart, and goes back and forth between happyness and anger, has a temper issues and will practically kill someone if pushed to his boiling point, he does look out for his fellow squad members but hates being controled by his superiors but can't do anything about it. He's a ticking time bomb so watch out

Green was the last to be made but the defect out of them all, she has the strongest adsorption power so they had to cut off her hands, she's naive but is eager to learn, can't fuse for a long period of time, but can permently take gems powers by absorbing them into her body, can be arrogant, but loves to have fun, hates being borded, and loves fighting for the ppl she cares about, she's the runt with tricks up her sleeves