The Secondary Character

What should you do if being sent to another world turns out to be nothing like you were supposed to expect? They didn’t give you a talent—there aren’t crowds of available girls, and you don’t even have any special wealth. And the worst part is that soon you find out that even the main character in this story isn’t you. All you can do is silently watch the self-satisfied hero get everything you could only dream of—easy and simple. Day after day, you watch him defeat all enemies with one foot, building his harem and finding “royals” behind every bush. Should you just accept that, or sooner or later will you have to try to rewrite the “plot”?