That would be a fun experiement. Just take a month and repeat the process and see what I can do. But answering the question, yes, ammsaing money does give you different endings if you talk to the innkeeper.
I was more curious to know what are all the endings but thanks ^^
There are 3~ endings if you pay for the crystal to be uncursed (depending on your bimbo lv) and 3~ if you defeat the final boss. And 2 if you get too many Bimbo Levels, or do teh jobs too much.
I see, thank you very much!