This fun app allows you to access original characters, audio guides, and other great content when you visit the sightseeing spots in Oita City (Oita Prefecture). ■ Sengoku Period in Oita When you visit certain sightseeing spots, you can collect various characters and take photos with them. There are 10 characters in total. Be sure to visit all of the sightseeing spots in Oita City to complete your collection! When you collect all of the characters, you receive a certificate signed by Ms. Rin