He was one of eight Jedi summoned by Master Shadday Potkin to a secret meeting on Kessel to discuss the future of the Jedi Order. Arana advocated taking the fight to the Sith even if it meant falling to the dark side, a chance he got all too soon when Master Potkin revealed the meeting was intended as a trap for Darth Vader, who arrived shortly thereafter.

The Jedi masters succeeded in dismembering the Dark Lord. Koffi, who had been disarmed earlier, advocated the cold blooded murder of Darth Vader. When she opposed him, Koffi Arana slew fellow Jedi Bultar Swan for her lightsaber and flung himself at Vader in fury, and was killed mid-leap by the Dark Lord. His actions allowed Vader to subsequently eliminate the remaining Jedi present.