Origin
Ryōko Enatsu has been a childhood friend and rival of Hikaru Ohno for nearly their entire lives. When Ryōko tried to beat Hikaru at anything, she always seemed to lose and the frustration always got to her. This eventually led her to taking out her anger elsewhere and developed a certain level o taste for sadism. In high school, she became the manager for the baseball team, and their star pitcher, Koichi Tatsukawa, became her willing submissive boyfriend
Creation
Ryōko Enatsu (江夏 撩子, Enatsu Ryōko) is a main character of the manga series Take On Me that was created by Sessyu Takemura. It originally began publication by Core Magazine’s Megastore Comics in 2004. When the U.S. publisher Eros Comix released the first volume in English in 2007. The title was changed to Domin-8 Me.
Her first appearance was in Take On Me Volume 1 CH. 6 “Arlington Road”.