Teshin
Caught between Dax obedience and personal honour; the warrior who helped both Operator and Drifter claim their own will.
The Operator's teacher
Teshin questioned Lotus's overprotection and argued that the Tenno could not be free without knowing the truth. Through the trials of the mountain pass he opened the Operator's suppressed Zariman memories and helped them act independently of a Warframe.
The New War and Duviri
Infiltrating a Sentient Murex, he was gravely wounded by Erra and fell through the Void into Duviri. There, as an aged guide, he drew the Drifter out of Dominus Thrax's loop. The same man taught the lesson of will to two Eternalism paths at two different times.
The Dax chain
Teshin's forced obedience is not disloyalty; it is Orokin control written into a Dax body. The Operator's defiance of the Kuva Queen breaks his chain too. His honour is measured less by the orders he follows than by the choices he makes where no order can reach.