Who was the former attack Titan and what was Grish Yeager's relationship with him? What were they doing in season 3? Who are they working for? - Quora

In Attack on Titan season 3 episode 21, Grisha tells Kruger (eren dad) he said complete your mission to save Mikasa and Armin, but why were they not even born yet? Why

How did Eren find out that he was the one who killed Grisha? - Quora

What happened to Eren's father in Attack on Titan? - Quora

If Grisha Yeager had been more kind to Zeke, would Zeke have not wanted to wipe out the Eldians? - Quora

What's the use of Eren Yeager being and having Titan powers when he's still the weakest of them all, always gets his ass beaten, always loses a leg or arm and always

Who was the former attack Titan and what was Grish Yeager's relationship with him? What were they doing in season 3? Who are they working for? - Quora

Why Did Grisha Pass Down His Titan Powers to Eren? (SPOILERS)

AOT Spoilers: Now that Eren has removed the power of titans from Eldians, how will they survive? Does he expect Marley to just forgive Eldians and move on? - Quora

Why couldn't Eren transform to fight the smiling titan? - Quora

Why do you like Attack on Titan? - Quora