Origin
K?ichi Tatsukawa has been his high school’s star pitcher for years, and he eventually became entangled in a torrid affair with his team’s lovely manager, Ry?ko Enatsu. He easily became her submissive plaything for her to dominate and take out her frustration sexually. The detailed of their kinky relationship stayed behind closed doors.
Creation

K?ichi Tatsukawa (?? ??, Tatsukawa K?ichi) is a 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.
His first appearance was in Take On Me Volume 1 CH. 6 “Arlington Road”.