Chibi is a kappa who has a deep love for Aoi since she takes care of him by feeding him regularly. He adores cucumbers as well as anything Aoi makes and sticks to her side since their reunion. Chibi always tries to do what is right even if he is outmatched for example he faced off with Raijuu when he insulted Aoi's cooking.

He is also very friendly and takes a liking to most everyone he meets even overcoming being scarred initially by Nobunaga and becoming friends with the dog.

(Source: Kakuriyo no Yadomeshi Wiki)