Code Lyoko (2003)

S1E10 The Girl of the Dreams

Jeremie suddenly finds himself unable to reach Aelita. On the same day, a new girl named Taelia, who bears a striking resemblance to Aelita, joins the school. Jeremie is convinced that Taelia is actually Aelita devirtualized, although his friends are skeptical. Meanwhile, XANA takes control of an ancient samurai suit that Yumi brought in for a class project, intent on eliminating Jeremie and his friends. Determined, Jeremie brings Taelia to the lab, hoping that she will overcome her "amnesia" and remember her true identity. But his belief turns into doubt when he realizes the truth.