Oldest sister in Drip family.
The Outbreak of Parasites in Equestria had gone out of control. She was one of earliest victims that was infested. She was killed at 31 by Blue, but was revived during The Extinction and controlled by the queen of parasite army.
After the defeat of the parasite, many puppets like Misery had died after losing connection to the queen. However, unlike them, Misery regained her consciousness. The parasite of her had turned into a symbiote for unknown reason.
Though it might be a good news for many that could not existed without the queen. The memory during The Extinction didn't disappear. She attempted a suicide because of the guilt of killing innocents. Her symbiote saved her and hinted her to go a place that wasn't tainted by the queen. A corner of Ponika that no one could find them.
Ponika: Infested Equestria