Well, I haven't reached that world yet, I still have to complete one.. But the translations so far are very good, I hope that when I get to that world the errors are already solved, as I also play with the Spanish translation.
To raise the attraction you must keep fighting against the boss... And to see how much attraction you have in some of the girls you have to go to your harem and there it will show.
Yesterday I finished my league, and today I started another... Right now I'm going for second place and I have 93 points... My season will last a week By the way, in the previous league I was second.