FKG and every nutaku/dmm game is a P2W game. I'm not sure if you think it's because there's no PvP mechanics or something but paying players have a huge advantage over non-paying customers in this and every other of their games. That's a given fact. You will never stand equal to a paying player if you play free, especially not in the nutaku versions.

They don't even need to worry about getting their 'waifus' cause they probably already did with one of the many paid events.