In 850, Connie graduates then participates in the Battle of Trost District. Despite his fear of Titans and his want to please his mother by joining the Military Police Brigade, he eventually joins the Survey Corps.
That same year, a mysterious Titan appears in Wall Rose and turns Ragako inhabitants in mindless Titans. Connie thus makes an unplanned return to his village to make sure the villagers are fine. Once arrived, he worriedly calls out for his family members. Eventually, Connie comes across his old house destroyed by a Titan laying on it. Later on, Connie leaves the village with the Survey Corps but is distracted when he hears the Titan saying welcome back to him. As Reiner calls him, Connie tells him what he just heard and adds that the Titan looks like his mother but Reiner urges him to focus on their mission.
Connie comes back to Ragako and hands Hange Zoë a portrait of his parents. Hange notices the common features between Mrs. Springer and the Titan lying on the Springers' house. Connie recalls the Titan spoke to him and Ymir and Reiner's claim it was not possible. Hange then orders to put ropes instead of the stakes that retained Mrs. Springer and gives Connie the portrait back. Acknowledging all was lasting of his family was his mother and the portrait, Connie cries. This discovery, along with the known information about Titans' physiology and Hange's experiences led her to believe the Titans that appeared in Wall Rose were Ragako inhabitants.