[Main functions]

1. Scan Exhibit QR Codes
When you scan the QR codes near each exhibit in Kumamoto Castle, you can listen to audio guides and read the label captions in multiple languages.

2. Narration & Subtitles
When you allow the app to listen to the video exhibits, you can listen to the narration in multiple languages with matching subtitles.

3. Scan AR Markers
By reading the augmented reality markers placed on the main keep's 6th floor, you can see old photos of the castle’s surroundings and compare them with today’s scenery.