Ryōko Enatsu is the childhood rival of Hikaru Ohno. She is the manger of the school baseball team. Her boyfriend/pet is Koichi Tatsukawa.
Ryōko Enatsu is a main character of the manga series Take On Me (known as Domin-8 Me in U.S.) that was created by Sessyu Takemura. It originally began publication by Core Magazine's Megastore Comics in 2004.
Her first appearance was in Take On Me Volume 1 CH. 6 "Arlington Road".