From the base's muted stone tones to Undertaker's refined, midnight-inspired silhouette, this ARTFX J figure captures the character's iconic presence. The long, tailored coat drapes naturally, with meticulously textured cuffs and lapels that imitate fine Victorian fabric. A tall top hat tilts at a confident angle, and white gloves contrast against a dark palette, highlighting the elegance beneath the macabre aesthetic. The face bears Undertaker's signature pale complexion and a sly, knowing smile, complemented by subtle shading that emphasizes cheekbones and shadows. Accessories such as a cane and skull motifs enhance the eerie charm, while a coffin-shaped display base completes the ambience. The pose conveys quiet confidence and a hint of mischief, inviting fans to inspect every sculpted detail and the painterly finish that conveys his enigmatic aura.

Undertaker in Kuroshitsuji Book of Circus appears as a mysterious figure who moves through the shadows of the circus world. He gathers information, manipulates events, and watches the efforts of others with amused detachment. Though outwardly calm, he is deeply calculating, aware that every performer, director, and patron plays a part in a larger game about secrets, souls, and bargains sealed in smoke and chalk. His relationship with Ciel and Sebastian tests their resolve while he keeps his own perilous motives close to the vest. In this arc, he hints at a past that cannot easily be understood and shows a willingness to risk lives to preserve a fragile balance between life and death. His presence adds depth and mystery to Book of Circus, reminding readers that sometimes the sharpest observer hides in plain sight.