Tsugunaga Momoko "Rainbow Berryz" (嗣永桃子 虹色ベリーズ) is Tsugunaga Momoko's second digital photobook. It was released on March 15, 2011 as an app for Android. The photographs were taken during Berryz Koubou's 2010 trip to Hawaii.
The third solo electronic photobook configured in treasured cut of Berryz Koubou's "Alo-Hello! Rainbow Berryz" photobook is Tsugunaga Momoko-chan "Momochi".
This photobook features Tsugunaga diving into the sea in a yellow bikini and becoming surprised at the strength of the waves, looking involuntarily cute while smiling and eating hani, buying Osumashi in a white dress, and playing with gusto and the members at the pool. The book also shows us she can look a little mature.