He's Mikasa's uncle by her mother. "Attack on Titan" creator Hajime Isayama doesn't reveal Levi's age but he did say Levi is “surprisingly old.” Also, Mikasa's father was tall and blonde—nothing like Levi. ... Levi and Mikasa are just both named Ackerman and have no relation whatsoever.
For the answer to the question above,
It is exactly what the name implies. The ends are staggered as opposed to blunt which makes them more likely to link up with their counterpart.
I hope my answer helped you. Feel free to ask more questions. Have a nice day!
<span>They can all team up to have a chance at fighting the "white settlers" or Americans.</span>