Aki Hinata is a central character in the anime series Keroro Gunso, also known as Sgt. Frog. She is the mother of Fuyuki and Natsumi Hinata and works as a manga editor. Despite her busy career, Aki is a calm and caring mother who often displays a surprising amount of strength and intelligence. She plays a crucial role in the series, providing a sense of stability and normalcy amidst the chaos caused by the Keroro Platoon, the alien frogs who have taken residence in her home. Her interactions with the aliens often reveal her humorous and unflappable nature.