It's real.

A dark-haired anime girl lies curled on a bed with a plush toy, then a blonde girl stretches on the floor, followed by a pink-haired girl being hugged while holding a phone, then a white-haired girl eats at a table, then a brown-haired girl mixes batter in a kitchen, and finally a blonde girl lies on the floor laughing while holding a game controller. The scenes take place in various indoor settings including a bedroom, a living room, a dining area, and a kitchen.