The Hinata family is made of three family members.
Aki is the mother and works all the time. She was interested in Keroro and his platoon and made a new comic book series.
Fuyuki is the youngest of the siblings, and he loves paranormal stuff. He became Keroro's first pokoponean friend and suddenly likes the Keronean race.
Natsumi is Fuyuki's sister and the oldest. She hates Keroro ever sence he came to pekopon. Now she make Keroro do the house chores. She is a very good fighter (That's why Giroro has a crush on her.) and calls Keroro Stupid Frog.