I remember reading this strange manga on the Viz Sig Ikki website called Tokyo Flow Chart. They used to post chapter previews to the site and that is where I originally read it. But unlike the other series, it never got an official print release. While the Way Back Machine has archived the page, the links to the preview pages don't seem to be working.
The series was a comedic 4koma series which had branching endings of "what if" scenarios. Almost like choose your own adventure like. Here is an example of it looked like.
Maybe a bit of an obscure series, not really something that got translated even on the manga scanlation sites.