In the under city; Wall Sheena; it was what people would also call, "hell". With its chaotic and constant never ending crimes, no one was safe. It was a living war, but it was normal for them all. Especially for a 16 year old, Levi Ackerman. Known as the "Prince of Blood".
For such a psychotic young man like him, it's obvious that he has no heart. All he could feel is hatred, disgust, and dark desires of snatching people's lives away from them.
He thought that no matter what, he shall not let anyone get In his way. Although, there is a little someone who's about to show him otherwise.