She choose to continue to model, she didn't choose anyone
Yah I think that's it only
No, Rin chose both Setsu and her job. What she didn't choose was to give up her job and go to new york. I think that Rin continued her modelling career while having a relationship with Setsu while he's in new york.
Chapter 6 seems to be from a different manga
and all of it is a misunderstanding xD poor girl
Its a nice manga. I don't like how she accepted the whole dating your step brother who is alsom in elementary
wished there was more details to the ending