Gilberta is the Queen of the dark elves in Zeruel. She was one of the only people who knew the truth behind Kounat's destruction.
There is nothing else known about Gilberta other than her sovereignty in the kingdom of Zeruel.
Gilberta confronts Dahlia and reveals the traitorous dark elf's true intentions to support Ashtaroth whom she calls Baldinar as he strives to recreate Aernas in his own image and gain power that would make the gods shiver. The Special Force leader summons the demon Quoronnos as a parting gift and leaves the Queen to fend for herself.
Gilberta is weakened and struggling against Quoronnos by the time the Grand Chase reaches her chambers, but she has enough strength left to conjure a shield that protects the Chase from the demon's fire breath. She then casts a barrier that negates the damage the Chase would have otherwise taken from the cursed rain that Quoronnos soon summons.
After successfully defeating the demon, Gilberta thanks the Chase for their assistance but quickly informs them of Baldinar's plot to use the Aernas Hammer located in the old capital of Kounat. She lends them an airship and states that she will follow them as soon as she is healed.
Gilberta appears in Zeruel as an NPC that assists players in their fight against Quoronnos. Though she does not attack, Gilberta will constantly cast a water shield around the players that will protect them against the damaging effects of Quoronnos' cursed blood rain for 30 seconds, after which the shield dissipates.
Depending on the route the player took to reach the boss room, Gilberta will either be at full life or half-life and survive the poison for 200 seconds and 100 seconds respectively, after which players will lose the protection of her water shield.
- There is a concept artwork of Gilberta that shows her eyes to be bright blue in color.