Question 1

Where is Osenbeiyasanhonpo Senyu Seibuyagisawaten?

Accepted Answer

Osenbeiyasanhonpo Senyu Seibuyagisawaten is in Nishitokyo, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Future Diary does Osenbeiyasanhonpo Senyu Seibuyagisawaten appear in?

Accepted Answer

Osenbeiyasanhonpo Senyu Seibuyagisawaten appears in OVA of The Future Diary.

Question 3

Can I visit Osenbeiyasanhonpo Senyu Seibuyagisawaten?

Accepted Answer

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

Question 4

Where was The Future Diary filmed?

Accepted Answer

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