About “Offside”
Offside is a Japanese manga series written and illustrated by Natsuko Heiuchi. It was serialized in Kodansha's shōnen manga magazine Weekly Shōnen Magazine from January 1987 to April 1992, with its chapters collected in 29 tankōbon volumes. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.