Tsubaki Yuina

 is a former member of Yumekawa Days MONSTER and Marbles. She joined Marbles on December 6, 2016. After the group's disbandment on April 19, 2017, she joined Yumekawa Days MONSTER (then named Yumekawa Crown TOKYO) in August.

Profile

 * Name: (ゆいな)
 * Nickname: Yuttan (ゆったん)
 * Birthday: October 1
 * Birthplace:
 * Zodiac: 
 * Blood Type: B
 * Member Color: (Yumekawa Days MONSTER),  (Marbles)
 * Hobbies: All games, getting tested on mushrooms
 * Skills: Flute, handicrafts