did find a few bugs thou in the v15, one that after you get your "slave" her furniture and show it to her, if you visit the sewers again you cannot go back at all unless you got a sort of program (outside the game) that lets you travel thru the maps otherwise you're stuck.
2- you can bypass the "aunt" quest about finding the school thieves and just get the reward by going inside her office, which apparently is earned when she gets credit for the thieves which were never caught in this instance.
3- there's also that snake tail chick quest about her new costume, it doesn't show what materials you need, much less hints on where to find them.