Sith instructor who teaches the dark martial arts fighting style of the Sith. Usually to new initiates. The Sithsei existed before Darth Bane's implemented "The Rule of Two." The Sithsei would teach basic survival and combat techniques using melee combat, with a combination of dark force powers. Also, the initiates learn early lightsabre techniques before choosing one of the existing lightsabre disciplines.
Sithsei is like the drill sergeant for new recruits at a sith boot camp.
Sithsei is a portmanteau of the words Sith and sensei.
sith-sei*Disclaimer, not Star Wars canon.* Just fan fiction.
The Sithsei decided to give unruly pupil one more chance, before force choking the life out of him.
