Mycroft worked with Christopher and Sakaki and did a variety of work in the USA. They protected high-ranking officials and even worked for the FBI. However, while Mycroft and Christopher enjoyed doing whatever job they could take, Sakaki refused to partake of missions that brought harm to children and the elderly, and the poor. Annoyed with this, Mycroft and Christopher had planned to kill Sakaki but instead both of them were buried in the desert by Sakaki (Kenichi envisioned the Karate master doing this with a bulldozer). While Christopher survived and became a member of Yami and Sakaki eventually joined Ryozanpaku, Mycroft has become a member of Yami along with Christopher.