Re:ZERO -Starting Life in Another World- The Frozen Bond

Re:ゼロから始める異世界生活 氷結の絆

Seven years before Subaru's arrival, Emilia lives alone in a frozen forest where the elves who once inhabited it are sealed in ice. Feared by nearby villagers who see the Witch of Envy in her silver hair, she gets by selling magic stones and driving off magical beasts. When the Great Spirit of Fire Melakuera arrives to destroy her, the cat spirit Puck steps in and offers a contract of mutual protection. This prequel OVA covers how Emilia and Puck first met.