Mari Yaguchi
In 2003, Takahashi replaced Mari Yaguchi in the Morning Musume spinoff group Mini Moni and debuted in the group's movie "" and its accompanying soundtrack. Later in 2003, she was part of the Morning Musume splinter group Morning Musume Sakuragumi, which performed mainly slower numbers on the group's two EPs, "Hare Ame Nochi Suki" and "Sakura Mankai", and the shuffle group 7Air, an R&amp;B-inspired septet.