Xkcd has recurring characters and storyline that are separated but connected. Blackhat is basically an asshole with style character (a classhole). The girl is Danish, the only person to one up him, and them meeting and their relationship is in the “Journal” series.
A few others are white hat, who isn’t always the same person, as well as Cueball, Mrs Roberts (mother of Lil Bobby tables) and a few others. You don’t need tro know them to get a comics joke, but if you follow the whole work it’s like little Easter eggs you can find.
Xkcd has recurring characters and storyline that are separated but connected. Blackhat is basically an asshole with style character (a classhole). The girl is Danish, the only person to one up him, and them meeting and their relationship is in the “Journal” series.
A few others are white hat, who isn’t always the same person, as well as Cueball, Mrs Roberts (mother of Lil Bobby tables) and a few others. You don’t need tro know them to get a comics joke, but if you follow the whole work it’s like little Easter eggs you can find.