Can you explain Attack on Titan Ymir's back story?

The key element is her encounter with the tree and the spine - like thing which made her the first Titan. Another is her status as a slave which led to her being used by others for her new - found power.

One possible fanfiction could be about their adventures together within the walls. Maybe they discover a hidden passage that could potentially change the fate of the Survey Corps. They might face Titans together and in the process, their bond deepens as they rely on each other's skills and instincts.

In a fanfic, Christa and Ymir might find a hidden place within the walls. This place has secrets about the origin of the Titans. As they explore it, they learn more about each other. Christa could discover Ymir's past and understand why she is the way she is. Their story could be filled with mystery and adventure, and in the end, they become even closer friends.

One more concept could be a time - travel fanfiction. Christa and Ymir are sent back in time to a crucial moment in the history of the walls. They then have to use their knowledge of the future to try and change things for the better. Their relationship would play a key role in how they approach this new situation and the decisions they make.

Well, the origin of Attack on Titan. Titans showed up out of nowhere. They are these massive, mindless (mostly) creatures that just love to chomp on humans. Long ago, humans were nearly wiped out. So they built those walls. But there's a mystery behind the Titans. There are hints that they might not be just some random monsters. There could be some sort of power or intelligence behind their creation. Eren's story starts with this tragic event of his mother's death. And from there, his journey to take revenge on Titans and find out the truth about them begins.

Ymir's character could be developed by exploring her past more deeply. For example, her time as a Titan before joining the Survey Corps. This could make her more complex as she struggles with her identity. Christa, on the other hand, might develop by breaking out of her 'nice girl' persona. As she faces more challenges with Ymir by her side, she could become stronger and more assertive.

In fanfiction, the relationship between Eren and Ymir can be very complex. Some fanfictions might explore how Eren's actions are influenced by Ymir's power and history. For example, they could depict Eren as trying to understand Ymir's true intentions behind the power of the Titans. It might also show how Ymir views Eren's determination and how that might play into the overall story of the Attack on Titan universe within the fan - created narrative.

Popular themes in Ymir x Christa fanfics include growth. Both characters can grow as individuals through their relationship. Ymir might become more empathetic and Christa more confident. Another theme is the exploration of secrets. Since both characters have their own secrets in the original story, fanfics can delve into how they share or keep those secrets from each other. And finally, the theme of hope. Their relationship can be a symbol of hope in the otherwise dark and violent world of Attack on Titan. For example, they might give each other the strength to keep fighting against the Titans.

The relationship between Ymir and Christa in Attack on Titan fanfic is often a focal point. Ymir's character is complex and her connection with Christa adds another layer to it. In many fanfics, they start off as comrades but gradually develop a deeper connection. It could be due to their shared experiences in the Survey Corps or the harsh environment they live in. Their relationship might also be influenced by the power dynamics within the story. For instance, Ymir's abilities might play a role in how she protects Christa. And their relationship might not be without conflicts, as they both have their own goals and personalities, which can lead to interesting plot developments in the fanfic.

The back story of Attack on Titan involves a complex history of humanity, Titans, and the walls. It delves into the origins of the Titans, the politics and power struggles among humans, and the secrets of the world they live in.