I think this game should be played with NTR on, even if you hate this thing, because it is an integral part of this "horny teenagers in campus" theme, which is present in Eurotrip movie (remember "Scottie doesn't know" song?). The game perfectly shows that competitive part of sexual life when sometimes the MC loses, only to win over another girl even if you roleplay as an all-chivalrious gentleman. I think the game is somewhat philosophic and the author tells us that shit happens, but life goes on, and opportunities for success apear on daily basis (unless you've stopped interacting with people and play H-games all the time)