Mari Yaguchi
In 2009, the unit was revived as ZYX-α (ZYX Alpha). Of all the original members, only Momoko Tsugunaga remained (Mari Yaguchi and Megumi Murakami were no longer a part of Hello! Project, Erika Umeda also joined ZYX-a, but left following her graduation from Hello! Project in October 2009 and Saki Shimizu and Maimi Yajima were members of High-King).