Question 1

Where is Koyama Shoten?

Accepted Answer

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

Question 2

Which scene of Lycoris Recoil does Koyama Shoten appear in?

Accepted Answer

Koyama Shoten appears in EP5 of Lycoris Recoil.

Question 3

Can I visit Koyama Shoten?

Accepted Answer

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

Question 4

Where was Lycoris Recoil filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Koyama Shoten is one of those real places (EP5).