Rb is one of Ca's friends/rivals. Her original name was Chibi-Ca but was changed, probably to give her more character. Her first appearance was in machine muzik on July 3, 2009 on NicoNico.
Skull/Robot Form:Human Form:
Variants:
Zeromachina variant:
She appears in the manga Calcium! as Ca's rival, while in the light novel series Zeromachina, she is the main antagonist which I don't even know her goal.
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An Introduction to Calne Ca/Deino's Other Characters
RandomThe title says it all I DO NOT own any of Deino's characters!! Keep in mind that I am still finding new things about Deino's amazing characters ☆ #1 in Information (2022) #1 in Deino (2022)