User blog comment:B214/General Discussion/@comment-86.174.156.218-20170503145347/@comment-1359322-20170505155443

Base on your logic, if person A says Asia will marry Riser in Volume 25, you will assume it as possible because Ishibumi never said Asia won't marry Riser.

This is what me and the others are pointing at. Even in a fictional setting there are things that won't happen because of the flow of the story. It's not possible to just go against the flow of the story completely.