You're watching through someone else's eyes in their apartment, and the romance builds entirely on presence, not plot. Four guys, four episodes each, all of them learning to want you there before they're sure they even like you. This format either feels like intimate observation or a waste of twelve minutes depending on who you are, and the show knows it doesn't care which.
Room Mate is a short-form romance and slice-of-life series from 2017, running 12 episodes. A spin-off of the TV anime One Room, it offers a different story built around male characters instead of the original's female leads. Told as a first-person anime, it puts the viewer in the place of a female protagonist who lives opposite three male neighbors.
Streaming Room Mate legally, as of the last catalog refresh. Availability changes by region.
Crunchyroll