@faruq9854 During the ball Mia gave Anne some time off and gave her some money so that she could enjoy the day. Being a devout member of the cult of Mia however, Anne thought that of this as some masterplan to make connections so she went off and used that money to buy gifts for the academy...
@FRASH_18 It's due to the rules of his abilities. He will only exit the world and be back at the point where he originally used the ability i.e. the slaver HQ. By having Abyss lure them away they could come back to a hopefully empty HQ and escape easily instead of having so many burdens in enemy...
@Mgo2 It is on a roughly bi-monthly schedule and released in parts around the start and middle of the month. You can check on the raws link to see if any new parts are released.