Eren Yeager teaming up with Zeke in Attack on Titan is a huge deal, and it’s not as simple as it looks. At first glance, you’d think Eren’s cool with Zeke’s plan to stop Eldians from having kids, basically ending their whole race through the Euthanasia Plan. But there’s way more to it than that.
Truth is, Eren’s just using Zeke to get his hands on the full power of the Founding Titan. He needs someone with royal blood to make it work, and Zeke’s got that. Eren’s real plan is to start the Rumbling—unleashing countless Colossal Titans to flatten the outside world.
Eren thinks this move is the only way to keep Paradis and his friends safe. He wants them to live peacefully. He is an amazing character who sacrifices himself for his loved ones. By working with Zeke, Eren is putting himself in a position to get the power he needs for his plan.
He’s not just good or bad. What he’s doing is messed up, but his reasons are complicated. He really thinks he’s doing what needs to be done to save his people, no matter how high the cost.
This kind of complexity is why Attack on Titan is so gripping. It makes you think about heavy stuff like freedom, what you’d sacrifice, and how far you’d go to protect what matters to you. Eren hooking up with Zeke only to pull this radical move shows how the series is always playing in those gray areas where there’s no clear right or wrong.