Pop Pop City
Japanese title: POP POP CITY
Type: ONA
Episodes: 1
Source: Original
Genres: Drama, Sci-Fi
Studios: Graphinica
Duration: 10 min
Rating: PG-13 - Teens 13 or older

The night of a family birthday party. The mother is tired from work and wants to drink a beer as soon as possible. The father is fidgety and keeps an eye on the clock. A little girl is excited about the sumptuous meal and runs around the house. The intercom rings. There, a "new family member" is standing there...

(Source: Official site, translated)