Postino

He is the only other reoccurring character, and is a good example of the series' surreal tone. Postino is a mail carrier who travels by motorcycle, and whose route seems to include the entire world. He appears, seemingly on cue, at some point in each episode just as Jing is in need of help. He drives up, delivers a clue or plot exposition, and then drives away, and is not seen again for the remainder of the story. Postino is both a parody of Deus ex machina plot devices, and an example of the surreal and sometimes illogical world which Jing inhabits. Postino appeared only once in the original manga, in the "Amarcord" story. He appears twice in the Twilight Tales series, once in volume one, and once in volume five.

(Source: Wikipedia)