A third common theme could be loyalty. Eren, as Levi's pet, might show extreme loyalty towards Levi. This loyalty could be tested in various ways, such as when Eren is faced with difficult choices or when there are misunderstandings between them. It could also be a source of conflict if other characters question or try to break this loyalty.
There are so many fanfictions out there, and 'eren is levi's pet' is a rather specific concept. It's possible that it's a more niche idea within the fandom. One way to discover such fanfiction is to reach out to other fans of the series on social media platforms. Ask if they've come across any stories with this premise. They might be able to point you in the right direction, or perhaps even share some they've written themselves.
Levi's overprotection can also shape the relationships in the plot. Other characters might view Levi's actions towards Eren in different ways. Some might support Levi, thinking Eren needs that protection, while others might side with Eren and encourage him to be more independent. This can lead to various sub - plots and further development of the overall story.
It's hard to say. 'Levi x Eren' fanfics are quite common in certain fandoms, but the 'Levi is a criminal' aspect makes it a more specific and perhaps niche sub - genre. If there are a lot of fans who like to see dark or morally ambiguous takes on the characters, it could potentially be popular within that subset of the fandom. However, it also might not be mainstream popular as it goes against the more typical heroic portrayals of the characters.
In the 'Attack on Titan' series, there is no clearly defined canon romantic interest for Levi. His character is mainly focused on his role as a soldier and his fight against the Titans. However, many fans like to ship him with various characters in fan - made love stories.
The fanfiction of Levi and Erwin's back story is filled with interesting details. Levi's past in the Underground gave him a unique perspective on life and survival. When he joined the Survey Corps, he brought that tenacity with him. Erwin, who was more of an idealist, was intrigued by Levi. Their back story could involve how they trained together. Erwin might have tried to instill his strategic thinking into Levi, while Levi taught Erwin some practical combat skills he learned from his tough life in the Underground. This exchange of knowledge and experiences is a key part of their relationship's development in fanfiction.
The Levi's success story is long - standing. One key factor is their continuous innovation in design. They introduced different fits and washes over the years to keep up with changing fashion trends. Moreover, their strong brand image has been built through effective marketing. For example, they associated their jeans with the American spirit of freedom and adventure, which appealed to consumers globally. Their ability to adapt to different cultural markets also played a huge role in their success.