Joshi Ochi%21 2-kai Kara Onnanoko Ga... Futte Kita%21%3f: Season
: The landlady of the rundown building who adds a "love triangle" element to the living situation. Production and Structure Produced by and aired as a TV mini-series, the anime consists of 9 episodes
The premise is gloriously simple and absurd, perfectly encapsulated by the title. Our protagonist, Ryousuke, is living a quiet, somewhat lonely life. That is until a literal hole opens up in his ceiling (the floor of the apartment above him), and his beautiful neighbor, Uno, falls through.
That likely translates to: Which could mean something like: "Girls’ Fall! From the 2nd Floor, a Girl… Fell on Me!?"
Based on the phrasing and the use of “season,” you are likely looking for the or anime series: