Sebas Tian/Relationships

Ainz Ooal Gown
As the head butler, Sebas was assigned to attend to Ainz's needs and is always at his side before he was sent away on a mission. Sebas is extremely loyal to Ainz as he is the last of the Supreme Being to the point where he would kill Tuare without hesitation if Ainz ordered him to. But Sebas would sometimes scold Ainz when he went out on his own.

Touch Me
Touch me is the creator of Sebas and like all other created NPC, Sebas is extremely loyal to his creator. It was also stated that if he had to pledge his loyalty to only one among the Forty-One Supreme Beings, Sebas would choose Touch Me without hesitation. After the transfer of Nazarick to the New World, he has acquired a lot of similar traits as his creator. He tries to live up to his creator's honor and kindness to those less powerful than him.

Albedo
Albedo is Sebas' colleague. As Albedo is Leader of the Floor Guardians, while Sebas leads the Pleiades, she has no authority over him except in matters pertaining to the upkeep of Nazarick or if Ainz says so. They accompany and serve Ainz in his duties in Nazarick. Albedo said to Sebas that if any situation arises, he should come back and report to her, especially if it's anything related to Ainz.

Shalltear Bloodfallen
They worked together in their mission to capture humans who know how to use martial arts. Sebas thought that someone like Demiurge would be better suited for the task, something that made Shalltear very angry. While he doesn't like the way Demiurge treat humans, he's fine with Shalltear's evil personality.

Demiurge
Sebas Tian and Demiurge don´t get along. Sebas dislikes how Demiurge treats humans, however he doesn´t mind Shalltear who has the same “hobby”. It´s said that the reason for their friction relationship is due to their own creators. Touch Me and Ulbert Alain Odle didn't get along as well and such relationship was inherited by their creations.

Cocytus
Cocytus is Sebas's colleague. He was ready to fight and kill Sebas if he were to be revealed as a traitor. However, as Sebas' killing intent & attack of Tuare was genuine, Cocytus blocked the attack confirming the butler's loyalties.

Aura Bella Fiora
Aura Bella is Sebas's colleague.

Mare Bello Fiore
Mare Bella is Sebas's colleague.

Victim
Victim is Sebas's colleague. He was ready to fight and kill Sebas if he were to be revealed as a traitor.

Yuri Alpha
She is Sebas' vice-captain to the Pleiades. They have a positive co-worker relationship, likely due to their creators & positive karma rankings. Following Sebas' stepping down from the Pleiades, Yuri remains his friend and helps in the maid training for Tuare under Sebas' care.

Solution Epsilon
As Sebas is her superior, Solution is loyal to him and would even apologize after acting rude to him although they know it was an act. However, Solution's loyalty towards the Supreme Beings is greater as she would even go against Sebas' order and report Tuare's existence to Ainz.

Tuareninya Veyron
After Sebas selflessly rescued Tuare from her horrible life as a brothel slave and having been the first person to treat her as a human being, instead of an object or a toy, the young woman eventually became smitten with the aged butler. This affection towards him is to the point of willingly braving the potential dangers of Nazarick just to be with him. He blushes when teased by Pestonya Shortcake Wanko on his relationship with Tuare, showing that he has feelings for Tuare. However, he became strict towards Tuare, in regards to her becoming a maid who will lead the rest of her fellow humans in E-Rantel, as requested by Ainz. For that reason, he wasn't willing to let her take a break until heeding the words from Yuri about her creator's words.

Staffan Heivish
Staffan made Sebas Tian's acquaintance when the government official attempted to intimidate and force Sebas to pay a hefty fine for a false charge of slave trading. Sebas compared him to a pig to slaughter when the fat man turned red when justified his actions. His definition of a pig would be accurate when Sebas Tian found Staffan naked in a brothel beating a defenseless woman. Disgusted by his predilections, the butler ruptured his internal organs and left him to die in agony.

Climb
Sebas admired Climb's determination to grow stronger despite his limitations, and thus agreed to train him. He first teaches the young man how to overcome a powerful killing intent, and later offers a mentor-like attention to teaching Climb as he fights off an assassin. He tells him that those who fight for something greater will always be stronger than those that only fight for themselves. During Tuare's rescue from Six Arms, Climb had developed a new Martial Art exclusive to himself which allowed him to consciously control his adrenal response for a momentary boost of strength.

Brain Unglaus
Sebas thinks Brain can hold his own, unlike Climb who is still quite weak in comparison. After witnessing Climb's withstanding Sebas' killing aura, Brain learned a humbling lesson of strength from others. While highly skilled physically, Brain learns the importance of inner strength which allows him a swift victory over Succulent. He holds Sebas' words in high regards, viewing him as a powerful & honorable individual. Also acknowledging his strength to be on a similar yet weaker level to Shalltear Bloodfallen.