So, having Ranma chase after the chain-smoker, eh? That'll be fun. Blackmailing the witches into becoming slaves for a year is priceless! Although, the two younger ones might not deserve it. As far as the Aunt goes, I think that she should be punished also, but not in a direct servitude way. Perhaps have her as harem supervisor or something to make sure that her nephew doesn't have to sleep alone in his lonely, cold bed? Along with working up a schedule to make sure they bathe him, etc? Just some thoughts. I really like where this one is going and can't wait for the next installment.