Movie
Description
Ciel Phantomhive stands as the central protagonist throughout the *Black Butler* franchise, including the *Book of the Atlantic* film. His background unfolds across multiple official sources. Born the younger identical twin on December 14, 1875, he witnessed his parents' murder on his tenth birthday. Both brothers were then captured by a cult, branded, and subjected to physical, mental, and sexual abuse. During a demonic ritual sacrificing the elder twin, the demon Sebastian was summoned. The surviving Ciel forged a Faustian contract with Sebastian, securing the demon's servitude in exchange for his eventual soul. The contract symbol manifests on his right eye, concealed by an eye patch. He assumed his deceased brother's identity and title as "Earl Ciel Phantomhive" to pursue vengeance.

As the Queen's Watchdog, Ciel governs London's criminal underworld. He operates the Funtom Company, employing Sebastian alongside human servants—Baldroy, Finnian, Mey-Rin, Tanaka, and Snake—who protect him despite comedic domestic failings. Shaped by trauma, Ciel displays a cold, calculating demeanor, yet retains childhood affinities for sweets, games, and his fiancée Elizabeth Midford. His physical frailty contrasts with strategic intellect and firearm proficiency.

In *Book of the Atlantic*, Ciel boards the luxury liner Campania in April 1889 to investigate the Aurora Society's illegal resurrection experiments. He encounters reanimated corpses ("Bizarre Dolls") created by Doctor Rian Stoker and orchestrated by the Grim Reaper Undertaker. Amidst the chaos, Elizabeth reveals unexpected swordsmanship protecting Ciel, altering his view of her. The film unveils Undertaker's motive: perfecting resurrection to revive Ciel's deceased twin, whose corpse he salvaged years prior. Sebastian suffers a near-fatal injury from Undertaker's death scythe, exposing "Cinematic Records" of Ciel's early contract days, including Sebastian training him for societal reentry as Earl.

Later arcs reveal the reanimated elder twin returning as a Bizarre Doll to reclaim the Phantomhive title. He exposes Ciel's identity theft, forcing Ciel into fugitive status. This conflict drives Ciel to investigate the Aurora Society further to clear his name and thwart Undertaker's plans.

A distinctive brand mark on Ciel's back from his captivity remains a source of shame, symbolizing enduring psychological scars. His relationship with Sebastian balances contractual pragmatism against subtle interdependence, particularly evident during life-threatening events like the Campania's sinking.