Micchon, whose real name is Mikuru Katsuhara, is a shy and reserved young woman who becomes a vital member of the group known as Eden of the East. Her reserved demeanor softens only when she is around people she trusts, allowing her to become more open and communicative. She is a highly gifted programmer, responsible for creating the image recognition software that serves as the technological foundation of the group’s operations. This software allows users to identify objects and people by photographing them with a mobile phone, drawing on social network data. Micchon’s exceptional skill with computers and programming makes her indispensable to the team’s efforts.

She is the cousin of Kazuomi Hirasawa, the leader of the Eden group, and is often referred to affectionately as Mi-tan by Akira Takizawa. At one point, she develops a mutual respect for Yutaka Itazu, a hacker known by the nickname Panties, and seems to have had a romantic interest in him. Her motivations are rooted in loyalty to her friends and a desire to contribute her technical abilities to help the group succeed. She remains a consistent presence throughout the story, applying her programming expertise to support the group’s goals. Over the course of the series and the subsequent films, she does not undergo dramatic personality changes but instead demonstrates reliability and growth in her confidence as a trusted member of the team. Her notable abilities include advanced programming, system development, and the maintenance of the Eden application, which becomes crucial to the group’s involvement in the larger conspiracy surrounding the Seleção and the missing missiles.