Question 1

Where is Rikkyo University?

Accepted Answer

You can see the exact position of Rikkyo University from the map coordinates and the Street View link.

Question 2

Which scene of Botan Kamiina Fully Blossoms When Drunk does Rikkyo University appear in?

Accepted Answer

Rikkyo University appears in ED10 of Botan Kamiina Fully Blossoms When Drunk.

Question 3

Can I visit Rikkyo University?

Accepted Answer

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

Question 4

Where was Botan Kamiina Fully Blossoms When Drunk filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Rikkyo University is one of those real places (ED10).