The second son of the Hojo family. A painter. He has a free-spirited and elusive personality. He clashed with the family head more than anyone else in the family. No one is certain what he was doing in his atelier on the night of the incident. Self-paced, rebellious, harboring darkness in his heart.

The eldest daughter of the Hojo family. A former actress. She is glamorous and captivating, but has felt isolated within the family since childhood. She retired from acting five years ago. She is hiding a certain "past event." Beautiful, delicate, hides her true feelings.

A servant of the Hojo family. A former orphan. A maid working at the mansion. She is quiet and reserved, but seems to know a lot about the mansion's relationships and history. There is a mystery surrounding her "memories" as well. Reserved, observant, fiercely loyal.

The eldest son of the Hojo family. A doctor. A highly intelligent and composed physician. He is the most detached member of the family. He was the first to discover the head's body, but questions remain regarding the situation at that time. Rational, perfectionist, protecting something.

The Hojo family butler. A loyal servant. A butler who has served the family head for many years. He is a man who knows everything about the mansion but never says much. There is meaning in his "silence." Sincere, reticent, carrying a burden.