With Futaba now a part of their team, the gang try to help her improve her social skills by taking her to the beach. Futaba then explains what she learned about Wakaba's research on cognitive psience, leading the gang to believe it is related to Palaces, mental shutdown cases, and the man in the black mask. As Mementos expands with the Phantoms' increasing popularity, Morgana becomes uncertain over whether he is really human while Ann is troubled with problems with her model work.