TV-Series
Description
Mikasa Ackerman, of partial Asian heritage, lived within Wall Maria until age nine. Human traffickers murdered her parents, revealing her mother's pregnancy and the loss of her unborn brother. During this trauma, Eren Yeager intervened, urging her to fight and awakening her latent Ackerman bloodline abilities—extraordinary combat instincts and physical prowess triggered by duress. Rescued, she received a scarf from Eren and joined the Yeager household.

The destruction of Wall Maria by Titans killed her adoptive parents, Carla and Grisha Yeager. This left Eren and their friend Armin Arlert as Mikasa's sole remaining bonds, cementing her view of the world as cruel yet beautiful and fueling her profound need to protect those close to her, especially Eren. She enlisted with Eren and Armin in the 104th Training Corps, graduating top-ranked due to exceptional vertical maneuvering equipment skill and combat acuity.

Initially defined by emotional withdrawal and intense loyalty to Eren, Mikasa often prioritized his safety over broader objectives, motivated by a desire for a peaceful life with him despite outward stoicism and level-headedness in crises. This focus sometimes compromised her judgment, leading to disobeying orders for his protection or losing her will to live when believing him dead. Her appearance evolved: short black hair cut at Eren's suggestion, a scar below her right eye from an injury caused by his Titan form, and consistent wear of the scarf he gave her.

As conflicts expanded beyond the Walls, Mikasa fought Titans and later human adversaries in Marley, adapting her gear with thunder spears and firearms. Her relationship with Eren strained following his rejection and initiation of the Rumbling—a global genocide. Despite enduring love, illustrated by a vision of an alternate life together in the Paths, she ultimately chose to kill him to halt the destruction. This act freed Ymir Fritz and ended the Titan curse.

After burying Eren under a tree near Shiganshina, Mikasa visited his grave regularly throughout her life, later with her own family. She died of old age decades later, still wearing the scarf. Her journey shifted from personal devotion to a broader commitment to humanity's survival, fulfilling her acceptance of the world's dual nature.