Connie Springer hails from Ragako village south in Wall Rose. His primary motivation for joining the military is a desire to make his family and village proud. Initially standing at 158 cm in the 104th Training Corps with a slim build, he has gray eyes and distinctive shaved brown hair, later noted as gray. By 854, his appearance evolves significantly to above-average height, slightly longer hair, and sharper features. His casual wear is typically a white long-sleeve shirt and brown slacks; on missions, he dons standard military gear with the Survey Corps cape. After transforming into a Pure Titan, his form grows tall enough to reach the Armored Titan's head, featuring exposed cheekbones, teeth, and gums due to missing flesh around the upper lip and nose. Characterized initially as outgoing, impetuous, and unfocused, Connie frequently goofs around with friends, especially Sasha Blouse, describing their bond as sibling-like. He demonstrates proficiency with vertical maneuvering equipment but struggles with complex strategies. Tragedies gradually erode his naive enthusiasm, replacing it with anger and resentment. The transformation of his mother into a Titan profoundly impacts him, leading to drastic actions like attempting to feed Falco Grice to her to reverse her condition. This culminates in a Ragako village hostage situation where he relents after realizing his mother would disapprove. Ranking 8th in the 104th Training Corps despite poor academics due to strong physical abilities and balance, Connie initially aspires to the Military Police. He changes his mind after Eren Yeager’s speech, enlisting in the Survey Corps. Early training highlights include punishment for incorrect saluting and witnessing Sasha’s disciplinary incident. He develops rivalries, notably with Jean Kirstein during Titan mannequin exercises where he and Sasha steal "kills." During the Battle of Trost District, Connie participates in cannon maintenance when the Colossus Titan attacks. Later stranded with low gas, he supports Mikasa Ackerman’s assault on headquarters and helps retrieve her after equipment failure. He witnesses Eren’s Titan form fighting other Titans and assists in clearing Titans from the supply room. Post-battle, he joins the burning of fallen comrades and voices internal conflicts about joining the Survey Corps. Investigating his deserted home village within Wall Rose with Reiner Braun and Bertolt Hoover, Connie finds no corpses or escape signs. He discovers a Titan trapped in his family home that speaks "welcome home." Subsequent investigations with Hange Zoë confirm the Titan is his mother and that all Ragako villagers were transformed into Pure Titans by the Beast Titan, providing critical evidence for Titan research on human origins and speech retention. His emotional deterioration later manifests when he abducts Falco Grice under false pretenses of medical treatment to offer him to his Titan mother. Confronted by Armin Arlert and Gabi Braun, he holds a blade to Falco’s throat but intervenes to save Armin from being eaten, reflecting his realization that his mother would value his integrity as a soldier. His relationships with characters like Reiner Braun, Annie Leonhart, and Bertolt Hoover highlight his role as an emotional anchor who challenges their perceptions of Eldians as "devils" through his inherent kindness and loyalty.