Height: 162 cm
Birthday: July 20
Blood Type: AB

Umiko is the programming chief at Eagle Jump, and is very strict when it comes to work, often scolding the other employees and maintaining discipline.

She is quite embarrassed of her unusual last name and insists to be called by her first name. She was born in Okinawa Prefecture, which is the reason for her tan skin.

Umiko is a gun and military enthusiast and enjoys FPS (first person shooter) and survival games.