Momoi is one of the students studying in Millennium Science School.<br /> <br /> She is the scenario writer for the Game Development Dept. at Millennium. Both she and her younger twin sister, Midori are literally developing video games in the Department.<br /> <br /> Although her cheerful personality are polar opposite for her shy sister, but their passion for games are strikingly similar and become great partners.<br /> <br /> (Source: Sensei! Welcome to Kivotos! Wiki)<br /><br />