Whenever you find a Lost Memory, ask the Princess to appraise it to determine the type of equipment and its properties.
Unlock new classes for each hero by satisfying certain requirements. Experiment with them to change up their stats, skills, and fighting styles.
Three Classes per Hero
Each hero has a total of three classes, including their starting one. After unlocking a new class, you can change to it at the Great Crystal anytime.
Take on Challenge Missions both in the Abyss and around Base Camp. Check with the Princess at the Great Crystal to learn about a mission's details and rewards.