Shuu Tsukiyama (月山 習, Tsukiyama Shū) was the infamous Gourmet (美食家) ghoul of the 20th Ward. He was a fourth-year student studying Social Welfare at the Department of Human Sciences at Seinan Gakuin University. He comes from an extremely wealthy and influential family, headed by his father, Mirumo Tsukiyama. He was a member of the Ghoul Restaurant, known as "MM" until he betrayed them. Two years later, his depression left him emaciated and required constant care by his family servants. His long-time friend, Chie Hori took action to help with his recovery.