Question 1

Where is Shiroya Seaside Park?

Accepted Answer

Shiroya Seaside Park is in Tahara, Aichi Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Makeine: Too Many Losing Heroines! does Shiroya Seaside Park appear in?

Accepted Answer

Shiroya Seaside Park appears in OP of Makeine: Too Many Losing Heroines!.

Question 3

Can I visit Shiroya Seaside Park?

Accepted Answer

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

Question 4

Where was Makeine: Too Many Losing Heroines! filmed?

Accepted Answer

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