Sebastian Alaxander Cromwell

Age:35 Chapter 3

Height: 6'1" (185 cm)

Hair: Dark ash-gray, always slicked back

Eyes: Steel blue

Quirk: Iron Vigor – Grants Sebastian superhuman strength, stamina, and reflexes without altering his appearance. His muscles don't grow disproportionately, and he can maintain a perfect butler's grace while delivering bone-crushing blows.

Powerlevel:9-A

The Cromwell family has served the Darkhearts for over two centuries, a proud line of butlers, bodyguards, and advisors. Each generation is trained from childhood in etiquette, combat, loyalty, and subtle political maneuvering. Sebastian, born into this legacy, was the most promising heir in generations.

Though he began watching over Elijah from infancy, Sebastian officially took over daily duties when Elijah turned one—as is custom in the Cromwell line. From then on, he has remained by Elijah's side almost constantly, serving not just as a butler but as a mentor and bodyguard.

Loyal to a fault, Sebastian treats his role not as a job but as a sacred duty. He would die for Elijah without hesitation.

Despite his formal demeanor, he has a dry, understated sense of humor, and occasionally teases Elijah in private—though never in public. His manner is always poised, his words precise, his loyalty unshakable.