Appearances
- The Silver (mentioned only)
- Flower, Sun, and Rain (mentioned only)
- Flower Sun and Rain: MURDER AND MYSTERY IN PARADISE (mentioned only)
- The SILVERCASE (mentioned only)
Nomenclature
- Kaoru Hachisuka (The SILVERCASE)
- Mayor Hachisuka (The SILVERCASE)
- Mayor Kaoru Hachisukar (The SILVERCASE character map)