Kimun Kamui

Kimun Kamui is the father of Kanna Kamui.

Background
Kimun didn’t care about raising Kanna as a daughter instead as a fellow comrade, so she ended up breaking one of the Dragon Balls as a prank. As a result Kimun ended up abandoning Kanna in a field.

Kanna Kamui
Kimun has very little knowledge of being a father to Kanna and considers her a "comrade" instead of a daughter.

Kobayashi
He and Kobayashi share a taste when it comes to sake, but they completely disagree on the way to raise Kanna.