Question 1

Where is Ryumon Falls?

Accepted Answer

Ryumon Falls is in Kyoto, Kyoto Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Horimiya: The Missing Pieces does Ryumon Falls appear in?

Accepted Answer

Ryumon Falls appears in EP1 of Horimiya: The Missing Pieces.

Question 3

Can I visit Ryumon Falls?

Accepted Answer

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

Question 4

Where was Horimiya: The Missing Pieces filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ryumon Falls is one of those real places (EP1).