Levi

Armin is a childhood friend of Eren Jaeger and Mikasa Ackerman. His personality combines shyness, deep intellect, an analytical mind, and a willingness to sacrifice.
Mikasa is Eren Jaeger's adoptive sister and Armin Arlert's best friend. Her personality combines restraint, devotion to her family, and remarkable willpower.
Eren Yeager is a complex and contradictory character. His character develops throughout the series as an impulsive and determined young man.

Hange Zoe is an eccentric, inquisitive individual, and fanatically passionate about titan research. At the same time, she is capable of showing restraint and determination, devising tactics that minimize human casualties. Erwin Smith, the commander of the Survey Corps in Attack on Titan, is a complex and multifaceted character. His personality combines calculation, strategic intelligence, steadfastness, and deep empathy. Levi is a complex and contradictory character. He is withdrawn, rarely shows emotion, and leaves a cold impression on others. At the same time, he is extremely blunt in his statements, rude, and can insult others. His sense of humor often veers toward the vulgar and dark.

To kill titans, you need to chop them just below the back of the neck, because if you hit them or cut off their arm, for example, they heal, so they created a UPM spatial maneuvering device.
Operating principle: the user fires a harpoon, hooks it onto an object (building, tree, titanium), and then uses a gas mechanism to retract to the attachment point. The cable can be retracted using the same gas mechanism. Design: It consists of a set of equipment, including multiple tight straps that encircle the body. The main components are handles, harpoon grips, a gas mechanism, and a driving unit made of steel wire with blades.

The reconnaissance corps serves to ensure that they go beyond the walls of Maria, Rose, Sina and kill the titans.