Very tryhard, very "take me seriously!" I suppose Iori going back to Manabu would work if we are supposed to interpret it as a bitter-sweet sort of thing; as Iori not really having learned anything.
But we get this whole scene of him sticking it to the man just for him to run back to a guy who was doing the same shit to him on a cheap promise of 'doing better' or something. He's kind of just accidentally retarded.
Ballad of Back Alley