A surprisingly deep depiction of human nature.
As this webcomic starts, it seems to be a fairly lighthearted fantasy. What it becomes by the end, however, is an epic and surprisingly dark science fiction story, dealing with a universe completely alien and different from our own and spanning millenia.
Despite this massively different setting, the story deals mostly with something much closer to real life: human nature. Every human character is exactly that: human. Although some characters do truly monstrous things, they do so with what is, to them, good reason. Much of the cast are murderers or worse.
But every character ultimately believes that the things they do serve a better end. Some characters sacrifice their bodies, lives, hopes, or dreams for others, simply because it was necessary.
Unicorn Jelly is a masterpiece. Although some content may be offensive to some, it accurately depicts people in all their imperfection. And in the end, what started out small and seemingly shallow leads into a distant, yet undisputably bright future for an entire universe.