Question 1

Where is Twin Palace Kichijoji Building B?

Accepted Answer

Twin Palace Kichijoji Building B is in Musashino, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Occultic;Nine does Twin Palace Kichijoji Building B appear in?

Accepted Answer

Twin Palace Kichijoji Building B appears in EP4 of Occultic;Nine.

Question 3

Can I visit Twin Palace Kichijoji Building B?

Accepted Answer

Yes. Twin Palace Kichijoji Building B is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Occultic;Nine filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Twin Palace Kichijoji Building B is one of those real places (EP4).