One more thing to regret

Without the Regret (photo by Tim Young)

X Without the Regret Which is one my Lifetime

Tim says:

I found this in, of all places, the men’s room at a trendy cafe near Kichijoji Station! The cafe has somewhat of a “manga” theme to its decor, so perhaps this is a (very bad) translation of something from a comic.

My guess is that perhaps it means this:

O I leave behind my regret Which is the biggest regret of my life

Or perhaps:

O Don’t regret. You only live once.