Synopsis

"We'll be together again, I promise!" Erwin Smith smiled and patted a girl's head as he turned to leave. Those were Cordelia's brother's last words to her before he left for the military. After the suspected murder of their parents by the government, he was the last family she had left. And just like that,

He was gone.

For a few years after, Erwin kept his promise and visited when he could, but when Wall Maria was breached, everything changed. Cordelia Smith decided to take matters into her own hands to make sure she could avenge her family, be with her brother, and save humanity. She'll do whatever it takes to discover the unknown. Just like her brother.
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A OC x Sibling! Erwin fanfic, a hint of Levi x Own Character luv in there. This will be attempting to take place around chapter 34 of the AOT / SNK manga
I do NOT own any of the AOT / SNK characters. They rightfully belong to THE Hajime Isayama. I also do not own the illustrations I used in the chapters.