Assassin

Assassin is the 3rd tier job class of the Thief, it unlocks after you get level 5 in Rogue.

The Assassin gets a +1 to Combat interaction at level 1 and it increase to +2 at 9. They get a +1 to Social interaction at level 7. They also get a +1 to encounters with Humanoid mobs at level 3.