Because of what he did Ren is no longer favoured by Ai , she stays away from him, leaving him out of every mission. His orders remain the same- look after the girl that unexpectedly joined their team. Of course this girl isnt a normal human, just as Ren isn't one. She had made a contract with Ai to work for her for a hundred years if Ai provides her with human body.
Despite looking like a human she does not know how to behave, walks on all fours and talks only telepatically.
But maybe she could be just the right thing to mend Ren's broken heart...All Rights Reserved