Question 1

Where is Heiwakannon?

Accepted Answer

Heiwakannon is in Nirasaki, Yamanashi Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of mono does Heiwakannon appear in?

Accepted Answer

Heiwakannon appears in EP11 of mono.

Question 3

Can I visit Heiwakannon?

Accepted Answer

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

Question 4

Where was mono filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Heiwakannon is one of those real places (EP11).