The Black Forest (also known as the Forest of Shadows) is a forested area that the fairies (among them Lilli) hail from. It was burned down by the RKS in the beginning of Rosenkreuzstilette during the time Spiritia Rosenberg and Lilli were chasing Talos, who had abducted Iris Zeppelin, and were looking for the source of the attack on the castle.
The forest can be seen in the background of the Imperial Training Hall, and as Spiritia advances throughout the stage, the player can see the forest be set ablaze.
|Rosenkreuzstilette||Imperial Training Hall · Black Forest · Snowfield · Nosdu Mountains · Heiligtum des Wasserteufels · Luftfeste Sleipnir · Ghost Town · The Fortress City of Zuverburg · Research Tower · Schwarzer Kinderspielplatz · Zeppelin's Castle (Castle Entrance, Royal Chapel, Castle Bridge, Castle Keep) · Iris Palace (Labyrinth of Chains, Garden of Chaos, Iris Quarters, Iris Palace Sky) · Floating Island|
|Rosenkreuzstilette ~Freudenstachel~||Snow Chapel · Castle Grounds · Forest of God · Nosdu Mountains (C75 Trial) · Gruft der Feurdrache · Heiligtum des Wasserteufels (RKSF) · Luftfeste Sleipnir (RKSF) · Ghost Town (C75 Trial) · Mountainside Dungeon · Zuverburg Clock Tower · Research Tower (C75 Trial) · White Desert · Zeppy Ruins · Burkhardt Castle · Phalanx Cathedral Ruins · Battlefield · Library of Shadows · High Chapel · Iris Palace II (Sanctuary of God · Bloody Ruins · Dark Iris Quarters · Iris Palace II Sky) · Snowy Pillars|