kaz, nina, inej, and jesper all regularly exchange letters post-ck. jesper reads all of them out to wyaln, word for word. at first, when jesper writes back, wylan gives his input in detail, both of them working on the next letter together. but after a while, it starts to make wylan a little sad that he can't really have his own say without having to dictate to jesper first, because he just wants to be able to communicate with his friends like they all do with each other and he feels stupid for even thinking it, but he feels so left out. so he stops giving as much detail, slowly taking himself out of the letters. he's not sure anyone notices
then, one day, two envelopes come together, with the same handwriting on both. one is addressed to both jesper and wylan, but the other is just for wylan. wylan is dubious (so is jesper, who briefly worries that it's jan van cunt, but wylan assures that's not his handwriting) but takes it to his room. the letter is essentially a comic of shittily drawn stick men depicting a heist. it's rushed and the stick men aren't exactly detailed, but wylan understands the story completely. right at the bottom, as a little stick figure with a hat and cane and little black dots for hands
since then, wylan and kaz draw little comics of stick men for each other. it's their way of discussing what's happening in their lives. wylan's ate much more detailed - he has more time on his hands than kaz, and a lot more drawing skills - and kaz's are scratchy and short, but it's their form of communication. wylan can tell kaz about things without having to dictate them to jesper first - not that he hates telling jesper what to write, but he finds it nice to have that autonomy in communicating with his friend
eventually, kaz tells inej, who tells nina (kaz is not telling nina, because she'll acuse him of being soft) (he is), and they also hop onto this idea. soon enough, wylan is sending his little stick man comics in with jesper's letter, telling his friends about his life by himself
he always puts a little more effort into kaz's though
