Warning! Spoilers ahead for Obi-Wan Kenobi episodes 1 & 2
While Obi-Wan Kenobi's new Inquisitor Reva is obsessed with hunting down the titular Jedi master, it may be because of a secret history with Anakin Skywalker during Order 66. Considering several factors such as the Third Sister's knowledge about Darth Vader's true identity as well as teases to her origins from the Grand Inquisitor, Reva might be more connected to the Sith Lord who was once Anakin. As such, hunting Obi-Wan might not be her primary focus and is rather a means to a greater end.
As seen in Star Wars: Episode III- The Revenge of the Sith, Emperor Palpatine ordered his new apprentice Darth Vader to go to the Jedi Temple and exterminate all of the Jedi within. This included many of the younglings who were training to be future members of the Jedi Order. However, the new Obi-Wan Kenobi is potentially teasing that one may have been spared.
Related: Obi-Wan Kenobi Is Already Avoiding Boba Fett's Fatal Star Wars Mistakes
In Obi-Wan Kenobi episodes 1-2, Reva's Third Sister has taken center stage as the primary antagonist, being the most ambitious and aggressive in comparison to Fifth Brother and even the Grand Inquisitor himself. While her fellow Jedi hunters see her as inferior as one who "came from the gutter", Reva believes that capturing Obi-Wan for Darth Vader will grant her "what she's owed". As such, it certainly seems as though a secret history between Reva and Darth Vader himself might come to light with the theory that Reva was a youngling Anakin might have spared during Order 66.
In Obi-Wan Kenobi episode 2, the Third Sister is seen taunting Kenobi after luring him out of hiding, confronting him on the planet Daiyu after using Princess Leia Organa
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