Is it me, or did the art style suddenly take a leap upwards in quality? The last arc felt like the artist was drawing worse than usual, and now the quality seems back up to what it was before the last arc. Did the artist have a ghost-artist filling in to do the work of the last arc?
Also, I have a hard time seeing the original Nanako as mediocre. The only difference is the longer hair and the makeup, which is something she could have done without a system. I guess it's because of the art style - even mediocre women look very cute.
I'm very excited for this new arc! It seems promising! I wonder if the system also brainwashes the male targets? Because if a guy is married or has a girlfriend, while some might cheat, it feels a bit unbelievable that Nanako manages to seduce every single target. Aren't there any guys who are uninterested because despite her beauty, her personality isn't compatible with what they want? Or simply because they're married and have already found love? The only explanation is that there is some sort of brainwashing linked to Nanako's system's abilities.