Ushiromiya Main Building

The Ushiromiya Main Building on Rokkenjima is where Krauss Ushiromiya's immediate family resides. The building is where most of the murders take place in.

Residents

 * Kinzo Ushiromiya
 * Krauss Ushiromiya
 * Natsuhi Ushiromiya
 * Jessica Ushiromiya
 * Lion Ushiromiya

Trivia

 * The exterior of the mansion is modeled after a Western-style mansion in the Kyu-Furukawa Gardens.