Kyon-Kyon has a sweet and sour personality. For starters, she's an adorable jiangshi who helps out at Jinbocho's library. She also has an older sister named Ran-Ran (who'll be part of a future wave), of whom she's VERY protective of. You'd think Kyon-Kyon herself is the older sister given how much she cares for Ran-Ran (who takes the form of a panda because of a curse)!
And when Ran-Ran is either made fun of or is taken from her younger sister... Kyon-Kyon SNAPS. She becomes an unstoppable force filled with revenge! She'll not stop until she makes sure the villain responsible is conquered! It only takes a mighty shout from Ran-Ran to get Kyon-Kyon to not only stop, but also calm down. So, yeah. Kyon-Kyon is an adorable sweetie pie, but don't kidnap (or say anything bad about) her older sister...
Kyon-Kyon has a cute, energetic voice when she's not hostile. When she is hostile, her voice becomes aggressive and terrifying!