Nani? I don't understand anything at all. Who was the old man and girl? If they were in an old chapter, then I've forgotten them after a long time. So who was the guy who wrote the letters? And why is he still talking to him on the telephone after returning to Japan? And how can the guy say that he beat the dungeon after the MC, if the MC was reading his letters before beating the dungeon himself? And why did the girl kill god?