Atelier Iris 2: The Azoth of Destiny

Felt and Viese, alchemists-in-training on the floating continent of Eden, are the games main characters. Viese becomes a full-fledged alchemist, and when she finds Felt at the Belkhyde Gate (a sealed gateway to another world), they go to a forest so Viese can make a pact with an elemental spirit. They find the Azure Azoth, an Excaliber-like sword, and Felt succeeds in pulling it out. He hears a voice telling him he must go to Belkhyde (which has been unsealed by the Azure Azoth) because Eden is ...