Hyouken no Majutsushi ga Sekai wo Suberu season 1 episode 5
Episode title: The Boy Who Became the World's Strongest Sorcerer Has an Unexpected Meeting on the Battlefield
Helena Grady has discarded her teacher disguise and reveals that she is a member of Eugenics, an organization trying to get sorcerers brains. Faced with her reckless onslaught, Ray is finally forced to face her as the Iceblade Sorcerer. As his friends look on, the battle is decided! Then, time leaps backwards 10 years. A young Lydia discovers a war orphan during her battlefield patrol. His name is Ray. Slowly, the mysterious past of the Iceblade Sorcerer is unveiled.
