Mikasa Ackerman
, ミカサ・アッカーマン
Mikasa is Eren's adoptive sister and childhood friend of Armin. Her bond with Eren is unbreakable, and she rushes to his aid whenever he faces danger. As a child, Mikasa displayed exceptional fighting skills and strength. In her teenage years, she was widely regarded as a genius among the army trainees due to her remarkable combat abilities and agility. Despite this, Mikasa remains deeply concerned about Eren's well-being and is committed to safeguarding him at all costs.
Because of Erens heroics and this gesture, she feels she owes her life to the Yeagers. She continues to wear Erens scarf from that day into adulthood, and they are inseparable.
In the end she is the one to kill Eren, saving the world.
19 (after time skip)
In that split second, Mikasa came to terms with the cruelty of the world, gaining perfect control of her own body and using that strength to kill the kidnapper in a single strike through the heart—killing him to save Eren.In the aftermath of this trauma, Mikasa asked Dr. Yeager where she could possibly go from here. She was cold and had no place left to call home. Eren gave Mikasa his red scarf and Dr. Yeager welcomed her into their family.
When Mikasa was younger, her parents were murdered and she was taken hostage to be sold into slavery. Eren managed to find her and killed two of the three kidnappers by catching them off guard, despite only being a child. The third kidnapper discovered the scene and began strangling Eren while holding him in the air. Mikasa, trembling, grabbed Erens knife from the floor.
