The only ones I’m sure about what anime they’re from are Boyn’t (Ouran) and One Or The Other (Ranma).

Boy might be from Hero Academia?

The rest: no clue.

And I don’t even have a clue about what 2 girls 1 boy is supposed to mean. Edit: Wait, is upstairs and downstairs what’s being referred to there?

I’d bet 5 dollars that this photo was the result of a fiverr request. Or photoshopped. Or both.

Nevermind, it’s a video clip, so not photoshopped.