@BugDemon
In chapter 8 Seiko talks specifically about how she loses her wage when it's above the limit. No mention of what her job is though, same afterwards as far as I remember.
EDIT: Focus on it being a wage, so we at least knew she does have a job.
I will never stop being happy for shamiko's health improvement and how she managed to be pretty good and content person despite all the shit that her family has gone through. Her being tactful towards momo's scars is also very nice.