Dear tanabe74, Cartageno posted this;
First, ditch the walkthrough, it is outdated, use the wiki instead.


Then: the game is long. If playing without walkthrough the first time you will certainly
not be able to get to all the good stuff but you will get to see a lot of stuff. How much that bothers you will depend on which girls you will prefer and how much pokémon you want to do (gotta catch 'em all).
There are very few "must do this to achieve something" decisions however so a lot of stuff can be fixed if you "messed up", however, some stuff does exist and it is hard to tell during the first playthrough, even when perusing the wiki, which one is which.
This game is in my opinion worth it but it is designed for multiple playthroughs, so if you prefer a "one full run, see everything and have fun - then move on to the next game", while it is possible to achieve, this might become something of a chore.
It is correct that NTR is only few and far between and completely avoidable, however, depending on your NTR "sensitivity" some scenes might still happen that trigger to a certain degree.
Have a good evening