Terrace House: Opening New Doors (Japanese: テラスハウス オープニング ニュー ドアーズ, Hepburn: Terasu Hausu Ōpuningu Nyū Doāzu) is a Japanese reality television series in the Terrace House franchise set in Karuizawa of the Nagano prefecture in Japan. It premiered on Netflix Japan as a Netflix Original on December 19, 2017. It is a Netflix and Fuji Television co-production which is also broadcast on Fuji TV in Japan, first through Fuji on Demand (FOD) on January 16, 2018 and on-air broadcast on January 22, 2018.