- Nickname: Yuffy
- Birthday: July 8, 1991
- Age: 27
- Height: 160cm
- Joined: July 9 2011
- Left: May 26 2013
- Lyrics Written: eat it, CRACK CRACK, urge over kill to love, Song for a (BiS)
- “Honour student” member
She always dreamt of being an idol from a young age, as she was a big fan of Morning Musume.
In March 2014, she graduated from Waseda University with a degree in Japanese Literature.
Pandas are her favourite animal, and she also has a love of mascot characters.
In April 2011, she appeared on the compilation album Ultimate!! Girls Revolution1 for the song “Tsundere Syndrome”
Left BiS after frequent arguments with Pour Lui over the direction the group was taking. Pour Lui and Yuffy have had a very open hatred of each other.
She took part in Miss iD 2014, where she ranked 4th and wont Amaterasu Special Award. Through this, she was able to begin her career as a solo idol and signed with major label Universal Music. In 2015, she switched labels to EMI.
Alongside her solo work, she formed an idol unit, Yufu♬Mari, alongside Dorothy Little Happy member Takahashi Mari.