Question 1

Where is H&M?

Accepted Answer

H&M is in Shinjuku, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Waiting in the Summer does H&M appear in?

Accepted Answer

H&M appears in EP2 of Waiting in the Summer.

Question 3

Can I visit H&M?

Accepted Answer

Yes. H&M is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Waiting in the Summer filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and H&M is one of those real places (EP2).