In the Real Life Pibby AU, **Marceline** is a battle-hardened vampire queen who has endured unimaginable suffering, including the loss of her closest friends to the corruption. Her immortality becomes both a curse and a burden, as she fights to protect the real world from the infected while grappling with the emotional torment of seeing those she loves turned into twisted enemies. Haunted by guilt and isolation, she becomes a key fighter on Pibby's team, though her inner pain runs deeper