Question 1

Where is Sand House?

Accepted Answer

Sand House is in Kōchi, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Fragrant Flower Blooms with Dignity does Sand House appear in?

Accepted Answer

Sand House appears in EP12 of The Fragrant Flower Blooms with Dignity.

Question 3

Can I visit Sand House?

Accepted Answer

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

Question 4

Where was The Fragrant Flower Blooms with Dignity filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Sand House is one of those real places (EP12).