We have released Additional Content Vol.3 today.

Resna and Valeria will join your party, complete with new character stories and unique recipes and items!
Team up with Resna and Valeria and take down powerful enemies!
Note:
- Resna joins your party after you complete the quest "A Lesson from Resna" in chapter 3, "A Chance of Joy."
- Valeria joins your party after you complete the quest "Doubts Before Breakfast" in chapter 6, "Creeping Shadows."
- This product is part of the “The Red Alchemist & the White Guardian - Atelier Season Pass.” Be careful not to make duplicate purchases.

https://store.steampowered.com/app/3811140/_/
Adds a pack of background music from "Atelier Resleriana" that can be used to change the in-game BGM.
Includes a special selection of over 30 songs from "Atelier Resleriana."
Note:
- BGM tracks can be used by selecting "Change BGM" on the save menu.

https://store.steampowered.com/app/3811200/__BGM/
Added the highest difficulty level, “Legendary.”
Higher difficulties strengthen enemies, but you will also receive more EXP, Cole, and items from battles! Take on strengthened enemies for even more challenging and exciting battles!

Added the “Extra Tree,” which allows characters' stats to be further enhanced.
Adds new Extra Trees to each character's Skill Tree, allowing you to raise their stats even more! A character's Extra Tree is unlocked after all skills and upgrades on their Skill Tree have been obtained.
Aim to make your characters even stronger!

Basket and Container Update
Added an “Ingredient Grouping” feature to the basket and container and made Catalyst Ingredients stack on a single slot.
Enjoy easier item management for a more comfortable Atelier experience!

• Added support for additional content.
• Added the highest difficulty level, "Legendary."
• Added the "Extra Tree," which allows characters' stats to be further enhanced.

• Added the "Ingredient Grouping" feature to the basket and container.
• Adjusted the basket and container to group Catalyst Ingredients into one slot.
• Added "Amount in Inventory" as a sorting option when selecting items.
• Added "By Rank" as a sorting option when selecting ingredients during synthesis.
• Adjusted sorting to respect previous sort order when applied.
• Adjusted cursor behavior during filtered list display.
• Adjusted filter settings to persist until the product shelf screen is exited when selecting products during shop management.
• Adjusted the skill selection screen to display burst skills during Unite Burst.
• Set the maximum amount of AP that a skill can consume to 100.
• Adjusted the upper limit of "Critical Damage Up" to 300%.
• Adjusted the abilities of some items.

• Fixed incorrect item sorting in the Guide.
• Fixed an issue where the timeline prediction did not display correctly until after the cursor was moved when selecting Totori's "Duplicate" skill.
• Fixed Item Mix being calculated as a skill instead of an item.
• Fixed the "Critical Damage Up" effect not applying correctly for some items.
• Fixed a bug that caused purple objects to sometimes be displayed during battle.
• Fixed other minor bugs.