Question 1

Where is Focus?

Accepted Answer

Focus is in Setagaya, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Bocchi The Rock! does Focus appear in?

Accepted Answer

Focus appears in EP4 of Bocchi The Rock!.

Question 3

Can I visit Focus?

Accepted Answer

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

Question 4

Where was Bocchi The Rock! filmed?

Accepted Answer

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