Only in new ver of game we will see whole picture, but base on story rn - new MC is out of that world.
RN he is like his brother and friends, but has just unusual active and pervert person inside and it feels natural. Like yes, his behavior changed, but he stays in body from that world.
New one is loosing that connection and start feeling alien.
RN he get sex not just because he has big dick, but also cause nobody expect boy to act like a boy from real world (like girl from story)
But the new one won't be the femboy-ish, so girls can't act like they do rn - telling MC not to do "weird" stuff in playful manner, just to realize that they already have waterfall between legs, after MC joins their game of "bad girl rides poor boy".
With new one this stage with playful chatting gonna loose sense, cause his look is already gonna set river run, that will kill all fun. Yes, it will still look natural, but the story was about fun, all those episodes with angel, hell, chatting with girls - it all was about fun...
Just hope new ver will save at least half of jokes...