Zolnir wrote...
As far as I'm concerned as long as you have the right amount of affection points and that you didn't miss the point of no return (and must have triggered all the flag events for the heroines) then you won't miss a route. However, intentionally not triggering an route event usually may mean that you're abandoning that particular route, so beware what you wish for.
If you still have doubts just Tweet the creator. He answers all the questions daily.
Arigato!