>>18395465>>18395520Green, Blue and Red from Pokemon Pocket Monsters, the first actual manga. Some people on this board say it's more popular than Special in Japan, but I think it's a lie, while comparing number of fanarts for both mangas on Pixiv, I can find only a few for Pocket Monsters and a lot for Special. Internationally not very famous, since it was translated by Chuang Yi pretty late. Rival is called Green here even in English version.
While Red and Green were based on their game counterparts, Blue is a totally custom character and Yellow is Red's evil clone. Later in Ruby-Sapphire another Red appears and Blue too, based on their FR/LG looking.