Roobarb Briers died, followed four days later by animator Godfrey. Roobarb is a green dog, and Custard is a pink cat. This is an inversion of the pudding (dessert) rhubarb crumble (pink) and egg custard (yellow). Roobarb is always involved in some kind of misadventure which he approaches with unbounded enthusiasm. Custard is cynical and sets out to sabotage Roobarb's fun. Which one comes out on top varies from episode to episode. Other characters in the series are the birds, who watch the antics of the other two from the safety of a nearby tree, often making snide remarks, and siding
Dog X Cat Dog X Cat Rachel Bentham, writing for Active Anime, enjoyed the artist's conceit of having the characters suddenly "sport cat ears or dog tails" respectively for comedic effect. Jennifer Dunbar, writing for Pop Culture Shock, was impressed by the inclusion of a condom and by one character offering to be versatile because the other is uncertain about having sex with a man, but was disappointed at the too-easy forgiveness of the rape at the end of the manga. Julie Rosato, writing for Mania, felt that most of the manga was "pure, shiny, A-grade fun", but felt that Junya's uncertainty and