Question 1

Where is Kamamihashira Shrine?

Accepted Answer

Kamamihashira Shrine is in Chichibu, Saitama, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Botan Kamiina Fully Blossoms When Drunk does Kamamihashira Shrine appear in?

Accepted Answer

Kamamihashira Shrine appears in ED9 of Botan Kamiina Fully Blossoms When Drunk.

Question 3

Can I visit Kamamihashira Shrine?

Accepted Answer

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

Question 4

Where was Botan Kamiina Fully Blossoms When Drunk filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Kamamihashira Shrine is one of those real places (ED9).