Nikaido is a major character in the anime series 'Dorohedoro.' She is a resilient and skilled fighter, known for her strong sense of justice and loyalty. As the owner of the Hungry Bug, a small restaurant in the chaotic city of Hole, she provides a safe haven for her friend Caiman and other allies. Her mysterious past and hidden abilities make her a key figure in the unfolding narrative, particularly in the conflict between the sorcerers and the residents of Hole. Nikaido's determination to help Caiman discover his true identity drives much of the story's intrigue.