She should be listening to the loli ghost. Saying she's OK because ghost helps her is sweet, but it sidesteps the issue: She's being taken advantage of, there's no give and take with her co-workers, and she should put a stop to it.
I still think that he's a loli cosplaying as a ghost! And now at the company, everyone else is just pretending to not see her because they're busy working, and Corporate Slave-san just kidnapped her because she was overworked and delusional thinking that she was a real ghost.