Attack On Titans ( Shingeki no Kyojin )

Female Titan: 57th Expedition Beyond the Walls

During their expedition, the Recon Corps set up a formation where several scouts spread around the main group where they will report by flare gun if a Titan is nearby so the main group can steer to avoid them. After Armin's squad manages to kill an Abnormal Titan, a Titan with a feminine body, suddenly appears from the right flank at high speed. Much to Armin's shock, the Female Titan's body can withstand their blades and is intelligent enough to kill his seniors easily. The Female Titan captures Armin but after removing his hood and seeing his face, she leaves him alive and continues running. Armin is picked up by Reiner and Jean who reveals that their right flank was wiped out by the Titans, which makes Armin realize it was the Female Titan's work and she is possibly another Titan Shifter like Eren. When the three of them give conflicting sources on where Eren is in the formation, they realize the Female Titan's target is Eren and they must stop her. Despite their failed attempts to attack, she leaves them and heads to where Eren is: the center of the group. Armin, Reiner, and Jean are left stranded after their encounter with the Female Titan leaves them with only one horse, but they are soon saved by Christa who arrives with extra horses. They wait for the order to withdraw, but to their surprise, they discover their operation is continuing albeit heading in a different direction. Meanwhile, news reaches the center group about their right flank being annihilated by the Female Titan as the latter continues to wreak havoc within the formation. Soon, the whole formation reaches the Forest of Giant Trees with only the center row entering it while the rest defend the forest from Titans. Eren realizes something is wrong when his squad has no idea what Erwin's orders are and what Levi is doing. As the Female Titan chases them at their heels, the squad desperately await Levi's command to attack, but Levi instead tells his squad to cover their ears as he fires his flare gun. Levi fires a noise round and tells the squad to keep moving forward. With more of the rearguard getting killed by the Female Titan, Eren begs his squad to let him fight but they tell him to trust Levi's decision. As he considers turning himself into his Titan form, Levi tells him to choose to be either a monster or a member of the Recon Corps. Eren starts remembering when Hange, Levi, and his squad had him try to transform into a Titan for experimental purposes but was unable to. During a break when he tried to pick up a teaspoon, Eren suddenly partially transformed, much to the squad's shock. They almost attacked him but Levi ordered them to stand down. Hange deduced that Eren is able to transform into a Titan not by solely injuring himself but also due to his desire to fulfill his goals. The squad apologized to Eren and told him they should trust each other. Remembering this, Eren decides to trust his squad's plan. It is then revealed that Levi's squad is bait to lure the Female Titan into an ambush where Erwin and his men fire hundreds of grappling hooks at the Titan, trapping it. Levi leaves his squad to meet up with Erwin to find out who the Female Titan is.