|School||Haneoka Girls' Junior High School|
|Year||Third Year (middle school)|
|Favorite Food||Potato chips|
|Least Favorite Food||Sea cucumbers|
|Hobbies||Finding the latest trends|
Ako is a short, petite girl with big, sharp crimson eyes. She has long light purple hair worn in curled pigtails with matching forelocks and straightened bangs. At times she has a fanged tooth.
Her casual attire borders on punk design with a cute flair.
Ako has chuunibyou tendencies, and has illusions of grandeur and magical powers. Rinko suspects this is the result from her playing online games frequently. She enjoys playing the role while keeping a realistic mentality. She is very cheery and noisy, and, despite only being two years younger than the other band members, is treated like the kid sister by the other characters due to her childlike appearance and personality.
Ako often wonders how she can be a "cooler" person, and sometimes feels inadequate compared to her other band mates, especially since Yukina and Sayo occasionally ignore her or scoff at her ideas at times.
|The Coolest Drummer!||1★||Powerful||Score Up|
|Little Demon||3★||Powerful||Score Up|
|Sincere Ambition||3★||Cool||Perfect Lock + Score Up|
|Attending a Wedding Ceremony!||2★||Happy||Life Recovery + Score Up|
|Refresh with Everyone||2★||Cool||Perfect Lock + Score Up|
|Tomoe's Exclusive Nurse||4★||Powerful||Life Recovery + Score Up|
|Floaties and the Ocean||2★||Pure||Perfect Lock + Score Up|
|Forever my Hero!||3★||Pure||Life Recovery + Score Up|
|Overlapping Blue Roses||2★||Powerful||Life Recovery + Score Up|
|Necromancer of the Abyss||4★||Happy||Life Dependent Score Up|
|Skiing Pro||2★||Powerful||Perfect Lock + Score Up|
|Number One Fan||4★||Cool||Perfect Score Rate Up|
|Teatime With Everyone||3★||Happy||Perfect Lock + Score Up|
- Ako is a member of her school's dance club.
- Her drum set is a DW (Drum Workshop) Collector Series: Pure Maple five-piece.
- Ako plays a dark summoner or necromancer class in Neo Fantasy Online, the online game she plays with Rinko.
- Ako sings the beginning of verse 2 in BLACK SHOUT, and sings all the pre-chorus parts in Nesshoku Starmine.