>>107815626A guy was killed during the first few minutes of the very first episode, and his corpse was left hanging on public display as a warning. Ryuuko saw the dead body, appeared unfazed, and just smiled at it in a rather evil-looking way.
The rest of the show turned out to be more about over-the-top ludicrous comedic fighting action rather than edge. But the introduction (along with her character design in general) made Ryuuko look kinda edgy, and that first impression probably stuck with people.