– Netflix has not announced a sequel.
In Japan, the "Bubble Era" (1986–1991) was an economic boom. House (1977) predates that. bubble de house de house de the animation 2
There is a famous internet meme: "It's free real estate" from the show The Office . But more relevantly, the French phrase "de la maison" (of the house) might appear in fansubs or summaries. Another angle: House music (EDM genre) – the film’s soundtrack by Hiroyuki Sawano includes electronic beats. Could "de house" be a garbled attempt to say "of the house" or "house of x"? – Netflix has not announced a sequel