AriD3ar
As an Artist Eren knew never to take things for granted. Because you never knew the hidden meaning behind simple things, where they could lead you, or even when they would leave. So he never did, he loved even the simplest of things. sand, trees, or water. So when he met a mysterious but rude man on the sidewalk, he was instantly inspired by his beauty. The simplicity of it. Little did he know, they're was nothing simple about the man.
Levi, from the time he was a young boy, he was taught to not ever take things for granted, and he never did. even without someone telling him that. Because he knew that whatever he loved would disappeared eventually, so you should hold them tight. The only flaw in that was, he never let anyone in because he was to scared they would leave. that is until a too kind for the world brighteyed brat came in the picture.
(Characters arent mine. only the plot, they belong to Hajime Isayama