|Kuroya Mami黒谷 麻実|
|Hair||Black, Spiky Bangs, Straight, Twin Tails|
|Clothes||Hair Tie, Hairpin, Knee-high Socks, Old Type School Swimsuit, Pleated Skirt, Sailor School Uniform, Sports Shoes|
|Role||Friend, Honor Student, Kouhai, School Sports Club Assistant, Seventh Grader|
|Visual novels||Main character - Imouto o Kegashita Kioku|
Mami is Aki's underclassmate and fellow track team member. She just started her first year of middle school and is one year older than Asaka. She looks up to Aki almost to the point of worship. Instantly friendly with everyone she immediately tries being Asaka's friend as soon as the two are introduced. Likes teasing others, especially Aki.