Aki Hinata is the mother of Fuyuki and Natsumi Hinata and the head of the household where the Keroro Platoon resides. She works as a manga editor for a magazine called Shonen Alpha, a demanding job that often keeps her away from home. Despite her busy schedule, she is a calm, warm, and laid-back person who rarely shows anger or worry. She is highly athletic and holds a black belt in aikido, making her the strongest member of the Hinata family in terms of combat ability. Aki is tall and attractive with long dark blue hair and teal eyes. She typically wears a black shirt and white pants, often paired with a red biker jacket and gloves when riding her motorcycle. Her age is a closely guarded secret, though she is estimated to be in her mid-thirties. When she first discovered the alien frog Keroro in her home, she was not surprised but delighted, seeing him as a perfect source of inspiration for a new manga character, which is the primary reason the Keroro Platoon is allowed to stay. She is generally kind to Keroro, calling him affectionate nicknames, but he genuinely fears her when she becomes displeased. Aki has a strange fondness for sticky and moist things, which contributes to her tolerance of the aliens, but she has an intense fear of animals, particularly vertebrates, to the point of screaming or fainting at the sight of them. She is one of the few characters who gets along with the cynical Kururu. The identity of her husband and the father of her children is never explicitly revealed, remaining an ongoing mystery. Aki is a skilled motorcycle rider, though she has a reputation for terrifyingly reckless driving that has earned her the nickname The Red Comet. Her physical measurements are officially listed as 92-60-86.