Question 1

Where is Hijirizaka?

Accepted Answer

Hijirizaka is in Minato, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Kaguya-sama: Love Is War -Stairway to Adulthood- does Hijirizaka appear in?

Accepted Answer

Hijirizaka appears in EP2 of Kaguya-sama: Love Is War -Stairway to Adulthood-.

Question 3

Can I visit Hijirizaka?

Accepted Answer

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

Question 4

Where was Kaguya-sama: Love Is War -Stairway to Adulthood- filmed?

Accepted Answer

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