After Obi-Wan Kenobi's experiences on Kadavo and the loss of his friend and love Duchess Satine, Obi-Wan finds himself questioning who he is and what it means to be a Jedi.
Ahsoka died on Mortis, and Anakin doesn't know how to move on. Except Ahsoka isn't dead. She's still alive on Mortis, having taken up the mantle of the Daughter to preserve the balance, regardless of what she actually wants. And when Anakin remembers, nothing can stop him from going back for her, no matter the cost.