Question 1

Where is Osawa Dental Clinic?

Accepted Answer

Osawa Dental Clinic is in Chofu, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of There's No Freaking Way I'll be Your Lover! Unless... does Osawa Dental Clinic appear in?

Accepted Answer

Osawa Dental Clinic appears in EP14 of There's No Freaking Way I'll be Your Lover! Unless....

Question 3

Can I visit Osawa Dental Clinic?

Accepted Answer

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

Question 4

Where was There's No Freaking Way I'll be Your Lover! Unless... filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Osawa Dental Clinic is one of those real places (EP14).