I like how the story is ending the charecter's final arc in the exactly opposite of how they were introduced, Esemori was a man who didn't really care about anything really but by the end of his character arc, he became someone who is ready to face retribution and finally recognises his faults, in the same way, Gen started off being a bully who has sworn to never let Reiji leave the town but by the end of his arc, he himself recognises how wrong he was and gives himself up to the police, implying he has given up on the abyssal town himself. I want to see Chako's final arc ending up in the same way.