Atsuko Katagiri is a member of AKB0048 who has mysteriously disappeared, most likely because of her Center Nova Positon. On Akibastar, she is known as "Atsuko Maeda the 13th" (前田敦子), also known as "Acchan" (あっちゃん). Atsuko has short, purple hair that fades into purple-magenta and reddish brown eyes. She wore a small red-black ribbon in her hair when singing Aitakatta. She has heart-shaped lining in her hair and eyes.