A World Without Mirrors (Japanese: 動物型にげだし錠 Dōbutsu-gata nigedashi jō) is an remake episode from the 2005 anime. It first aired in TV Asahi on November 24, 2017 and second aired in TV Asahi on November 30, 2019.
Nobita wonders what the world would be like if mirrors didn't exist, and he and Doraemon use the What-If Phone Booth to eliminate mirrors from the world. Both of them check out the changes after they made the call, and to their amusement, Tamako and Nobisuke are in for a shock when they groom their faces improperly. Going out the house, they are delighted to find all the mirrors disappear, and no reflection of them could be seen on the puddles of water and the windows...!?