Ren and Makoto

Ren code name Joker the leader of the Phantom Thieves, along with his teammate and second in command Makoto Niijima code named Queen. How will both Ren and Makoto loses their clothes? Will it be from an unknown source from Mementos? Or will it be from something else?

Obviously spoilers from Persona 5 read at your own risk, please I beg you play though Persona 5, Royal, and Strikers anything Persona related.