Vjun (Tier 0, Main story)

Vjun is a lifeless, desolate planet. It's surface suffers from heavy acidic rainfalls, rendering any evolution of life impossible. Even in these circumstances, the planet is inhabited, but all the locals remain inside their buildings to protect themselves of the acidic rain. Count Dooku has a well defended castle here, but he allowed your shuttle to dock at the hangar unharmed.

Count Dooku is and older man, he used to be the apprentice of master Yoda (an old and powerful leader of the Jedi order) and he was the master of Obi-Wan's master, Qui-Gon Jinn. His skills with the lightsaber are unmatched, he was known as the best duelist of the Jedi order. He once was a member of the Special forces, hence he knew many things of the dark side even before leaving the order. When his former apprentice Qui-Gon was killed, he blamed the Jedi for his **** and left to walk his own path, which has eventually led to the dark side and thus he became the leader of the separatist forces to defeat the republic and the Jedi. His age didn't worsen his skills, his knowledge of the **** almost matches his skills with the lightsaber. He is a powerful enemy indeed, whom could be defeated by almost no Jedi. Yoda still believes his former student is not entirely lost and he could still be saved. They have clashed once at the battle of Geonosis, but Dooku managed to get away before he would have been defeated.

Now, as a great surprise to all Jedi, Dooku contacted master Yoda to come and help him reconvert to the light. Yoda accepted the invitation, despite the opposition of the Jedi council. Though Yoda hopes he can succeed, he has taken master Kenobi, Anakin Skywalker and Jereli with him to help him if needed. Your master insisted that his three apprentices were brought there as well, though you were not going to be present at the talks. Your master has a different plan for you on the planet.