Set in late nineteenth‑century England, *Kuroshitsuji II* takes place one year and three months after the dramatic conclusion of the original series, introducing a new young master and a new butler. The protagonist, Alois Trancy, is both sadistic and cheerful, and his past is marked by hardship: kidnapped as an infant and forced to work as a slave in a village, he lost his parents, his brother, and everyone he loved. After returning home, he became the head of his mansion, yet his behavior has become increasingly strange. Accompanying him is Claude Faustus, an enigmatic and emotionless butler whose talent is unfathomable.