This episode had it all. Comedy, action and drama. Captain Hague is super creepy, having an old man be such a major M is just
Arthur's backstory seemed like it would be sad but heartwarming at first but then his parents just abandoned him. Poor kid. He loses himself in delusions to avoid facing the harsh reality.
People with Adolla Bursts are called Pillars and Iris is the very first one apparently. Split personality? Quite devilish, in any case.