Momoka is a kind and cheerful person, always looking for what she thinks is fun. In the time she spent with her team, she is shown to have a positive attitude and will do anything to protect her friends. By the time she passed with Sarah, Momoka eventually developed a older sister behavior, teaching Sarah things she hadn't learned and becoming one of her closest friends.

After using a Kapool as her first Gunpla for using, Momoka took this as a reference and built her own Gunpla, Momokapool. She is shown to be a close-range combatant and can be very smart if a strategy she planned fails.

She, Riku and Yukio were in a soccer match. When she first entered GBN, her avatar was a Haro as she was only a guest Diver.