after you clear the community quest, just visit the bar regularly and there will someone with question mark over their head
you will be given 2 choices, one give madorery scene, the other one will be the perquisite to recruit her
yes your reputation affect those, so the more bad your reputation is, more of the adventurers are going to be locked out, which is mainly the requirement for the true end, so the game won't let you get true end when you have bad reputation
the game is pretty good tbh, really good premise, and the art is good as well
it's just that it's too short to be able to enjoy the full concept of the game, a shame really