- Birthday: December 27, 1994
- Age: 23
- Height: 159cm
- Joined: 2015 – Founding member
- Current Groups: BiSH, SAiNT SEX
- Previous groups: PARALLEL, ITSUKI&AINA, Solo R&B artist
- Previous names: Iitani Aina / 飯谷愛菜
- Lyrics Written: ALLS, Throw Away, Hey Gate, Is this call??, help!!
- Member Colour: Red
- “Departure” Member
She revealed in an interview that she was sexually assaulted in elementary school when someone groping her. As a result of this, she spent years trying to hide her sex, trying to pass as a boy to avoid any attention.
Her earliest memories are of her mother hitting her. While these are her earliest and strongest memories of her mother, she loves her mother regardless and admits she was greatly spoiled otherwise.
Started learning dancing when she was 4 years old.
Aina was bullied in middle school, including being chased up a tree and a group of girls who would strip off her clothes if a boy passed in the hallways. She says she didn’t ever cry about it, as she was just happy they were paying attention to her. She does admit, however, that this had led her to be insecure about removing her clothes.
When first moving to Tokyo at age 18, to peruse her idol career, she slept in a park for 2 days after being evicted by her landlord for not having money for the rent.
She previously performed as a solo R&B artist, and was also was a member of idol group PARALLEL (now performing as PLIC PROCK). She was the red member, performing under the name Iitani Aina / 飯谷愛菜 in 2014.
She joined BiSH as a founding member in early 2015. She is also a member of the WACK collaboration group SAiNT SEX. She does the choreography for BiSH and has also done some choreography with EMPiRE.
Following the WACK 2018 New Year’s live broadcast, it was revealed that she received the second most fan votes to get her own solo debut. She is recording and recreating an MV for her pre-BiSH solo song, Kienaide.