Chiya is the central protagonist of the story, a fifteen-year-old girl who arrives in the town of Meirocho with a singular purpose. Her background is quite unusual, as she was raised in the mountains by a woman named Setsu, a friend of her mother. Having grown up surrounded by the natural world, Chiya lived a life isolated from the typical conventions of human society, learning instead from the animals that were her constant companions.

This upbringing is the primary influence on Chiya’s personality. She is bright, energetic, and displays an almost boundless enthusiasm, but her ignorance of social norms often leads to misunderstandings. The most pronounced example of her feral habits is her method of apology; instead of bowing, she will expose her stomach, a sign of submission and trust learned from her animal friends. She is agile and possesses keen instincts. Chiya sometimes appears with animal-like ears and a tail, a physical quirk that hints at her deep connection to the wild. She also has a habit of sniffing people as a form of greeting or recognition. Her fear of scissors stems from a traumatic childhood incident involving a snake getting tangled in her hair.

Chiya's primary motivation is to find her mother, Yami. She believes that by becoming a First-rank Urara, the highest class of fortune teller in Meirocho, she will be able to meet the legendary Urara who can use divination to locate her missing parent. This quest is the driving force behind her actions and her decision to undergo the rigorous training required in Labyrinth Town.

In terms of her role in the story, Chiya is the newcomer whose arrival brings together the main group of girls who all begin their training at the Natsume-ya teahouse. Her outsider perspective helps introduce the world of Meirocho and its rules to the audience. She is often the catalyst for events, pulling her more cautious friends into new situations with her fearless and curious nature.

Chiya develops several key relationships throughout the story. She becomes close friends and rivals with Kon Tatsumi, Koume Yukimi, and Nono Natsume, her fellow Urara apprentices. Her caretaker, Setsu, is an important figure from her past, entrusted with Chiya’s upbringing by her mother. The mystery of her parentage is central to the plot; her mother is Yami, and a mysterious creature named Kurou, who assists Chiya during a critical exam, is later revealed to be her father. Kurou was a human with clairvoyant abilities, like Yami, but was transformed into a monster by the god of Meirocho as punishment for his forbidden relationship with her.

Over the course of the narrative, Chiya undergoes significant development. While she begins as a naive wild child, her experiences in Meirocho and her bonds with her friends teach her about human relationships and the complexities of her own destiny. Her simple goal of finding her mother evolves into a deeper understanding of her family's tragic history and the heavy burden of the Urara who commune with the gods. She demonstrates a unique ability to interact with supernatural forces and gods, which sets her apart from other Urara trainees. In the end, she accepts the responsibility of becoming a Rank 1 Urara, not as a fate forced upon her like her mother, but as a choice made to protect her friends and solve the mysteries of the labyrinth.

Chiya’s notable abilities extend beyond standard fortune-telling. Her most distinctive gift is her ability to communicate with and command animals, a skill she developed during her years in the mountains. She also possesses a powerful form of clairvoyance. She has a unique technique known as Kurou Divination, which she is able to perform with the help of her father, Kurou. Her senses are incredibly sharp, and she can often sniff out information about people. Furthermore, she seems to have a high affinity for seeing and interacting with gods and spirits, a dangerous talent that is both rare and central to the story’s conflict.