Responses
I think it was to show that these people are absolutely horribly violent and merciless--and she has no choice but to work there or die nastily.
The diner owner is not unreasonable, though, within the parameters of his job. He's protected her several times.
This manga just reads like an exploitation film on paper. There's really no rhyme or reason why there's this level of violence, there just is. And the whole set-up for this manga seems out-of-place. Why did she need to go through all that weird shit just to end up working in a diner for criminals? Was it to showcase the level of weird shit that would be featured in this manga? Could've done it in a less slapdash way.