Mori was at home, reading a book while Elise was drawing with crayons again. It is Halloween and Mori had a bowl prepared with candy, though Elise was taking every now and then some of the candy. Suddenly the bell rings and Mori gets up, takes the bowl and opens the door, ready to give the kids candy and to their customs, only to see Dazai... wearing clothes like Mori does at work. Dazai was grinning at Mori with a teasing gaze

Dazai: "Trick or treat."

Mori: "Why are you dressed like that???"

Dazai had a mischievous grin

Dazai: "It's my custom! All you gotta do is go to the custom store and say: make me look stupid!"