Danchi No Tsuma Tachi Wa Extra Quality [extra Quality] -

The series utilizes the danchi (public housing) setting as a narrative device. Historically, danchi were symbols of Japan's rising middle class in the mid-1950s, but by the late 20th century, they became associated with social isolation and the "compartmentalized" living styles of urban workers. This isolation provides the backdrop for the characters' clandestine activities. Technical Meaning of "Extra Quality"

Versions of the 2019 animation with improved visual fidelity or less compression. danchi no tsuma tachi wa extra quality

While not an official title for the series itself, the "Extra Quality" tag is frequently used in digital distribution and physical media to denote: The series utilizes the danchi (public housing) setting

Ano Danchi no Tsuma-tachi wa... The Animation (Video 2019) - IMDb but by the late 20th century