TV-Series
Description
Sebas Tian functions as head butler of the Great Tomb of Nazarick, commanding manservants, assistant butlers, and the Pleiades Six Stars combat maids. Crafted by the Supreme Being Touch Me, he inherits a powerful personal justice that starkly opposes most Nazarick inhabitants. Outwardly, he presents as an elderly human butler with piercing eagle-like eyes, white hair, a trimmed beard, and a classic black uniform, though his true nature is that of a dragonoid heteromorph. He measures 179 cm tall and weighs 70.7 kg.

Originally positioned on the 9th Floor as Nazarick's final defense, his duty involved stalling invaders so guild members could ready for a last stand in the Throne Room. While not a Floor Guardian, his combat strength matches theirs, and he operates outside their hierarchy. He excels in hand-to-hand martial arts, employing skills like "Iron Skin" to harden his body like steel, "Healing Qi" to mend injuries and stamina, and "Puppet Palm" to extract intel by manipulating targets. A tactical flaw limits his capacity to finish highly durable foes in extended battles.

Aligned with positive karma, Sebas believes the strong must shield the weak. He avoids blanket hatred of humans but scorns those with morally "ugly" conduct. This ethos sparks friction with manipulative figures like Demiurge. Despite unwavering loyalty to Nazarick, he routinely questions its residents' ethics, especially concerning humanity, and feels acute anxiety when his devotion to Ainz Ooal Gown faces scrutiny.

After Nazarick's translocation to the New World, Sebas conducted early reconnaissance under Ainz’s orders. During intelligence work in the Re-Estize Kingdom—visiting the Adventurer’s Guild and procuring low-tier scrolls—he discovered Tuareninya Veyron, a battered woman discarded in an alley. Defying Solution Epsilon’s protests, he healed Tuare and inducted her as a Nazarick maid. This triggered a loyalty test where Ainz commanded Tuare’s execution; Sebas’s compliance (halted by Cocytus) verified his allegiance. He later annihilated the criminal syndicate Eight Fingers to safeguard Tuare, effortlessly crushing elite enforcers like the Six Arms.

Following the Sorcerer Kingdom’s founding, Sebas transferred to E-Rantel as head steward, relinquishing Pleiades command. His responsibilities pivoted to domestic oversight, often shared with Pestonya Shortcake Wanko. Tuare remained under his tutelage, training as a maid before rising to chief maid of the E-Rantel mansion. In the "Mass for the Dead" spin-off, he directed the Pleiades during a Nazarick crisis, stressing teamwork, hospitality, and psychological recovery for traumatized allies like Albedo and Demiurge. He covertly assessed Lupusregina Beta’s service skills during a defense meeting, modifying tea arrangements to hone her performance.

Media depictions vary: the web novel shows him rescuing eight women—wryly dubbed a "harem" by Ainz—with a lighter, cheerier demeanor, while light novels center solely on Tuare. All iterations underscore his absolute fidelity to Touch Me’s ideals, placing them above personal desires.