- Birthday: March 14
- Age: Unknown
- Height: 165cm
- Joined: Founding Member
- Left: She is set to leave the group March 4, 2019
- Audition name: Gamiya Saki
- Lyrics Written: LiTTLE BOY, コノ世界ノ片隅デ
Her parents were incredibly laid back, and let her do whatever she pleased with no pressure to study. She was jealous how other children worried about their parents, who gave them boundaries. Even when she told them of her idea to become an idol, and once she passed the auditions, their response was simply ‘OK’ as always.
She began to listen to idols in Junior High School, but she didn’t like too much. She didn’t like how they always acted so cheerful. There was another student who loved idols and told her about BiSH. She loved how cool they were. This person encouraged her to apply to the WACK audition.
In high school she loved English, and went to Australia to study on an exchange for a month. She didn’t get along with her first host family, particularly the mother. When she left them, as a goodbye the host mother stuck her middle finger up at Yuka and said “fuck you”. She then went onto another host family who were a lot nicer.
She was planning on going to university and moving to Tokyo. She even began to arrange the move as she didn’t think she’d really pass the training camp and would have to live as a normal person.
She gets on well with YU-Ki EMPiRE since she helped her become more positive during the WACK audition. They’ve been on many outings together, including Disneyland and Warner Brother Studios. They are both big fans of Harry Potter. YUKA dressed in a Gryffindor uniform, and YU-Ki in Slytherin robes.
She is set to graduate from the group March 4, 2019. In a final interview she revealed that she had been struggling to balance being an idol with schooling. She also revealed how none of the members are particularly close, so she didn’t have anyone to talk to about the issue, other than her school friends.