Eseni was a Lethan Twi'lek female who was a member of the religious group known as the Pilgrims during the Cold War between the Republic and the Sith Empire. She settled on the planet Tython with the rest of the Pilgrims, and, during a conflict with the native Flesh Raiders, Eseni and a number of villagers attempted to betray the Jedi Order to the Flesh Raiders' leader, the Dark Jedi Bengel Morr. Under threat from Morr, Eseni and several other Pilgrims tried to kill a young Padawan who had saved the village's crop fields from Flesh Raider sabotage, but the Jedi mind-tricked them and ended the standoff without violence.