The harem genre is a popular trope in anime and manga, often featuring a male protagonist surrounded by multiple female characters, each with their own unique personalities and characteristics. The genre often explores themes of romance, comedy, and relationships.
Scenes usually took place in kitchens, living rooms, or local neighborhoods, mirroring the "work-from-home" lifestyle many were experiencing.
2021 saw a jump in the production quality of digital art, making these "harem" stories more visually appealing and immersive than ever before. Impact on Today's Media
Put together: something like "Back Alley Shortcut: Older Sister Bitch Harem" — which strongly suggests a , doujin series , or eroge from 2021.