Chloe is a wealthy American child from Minnesota, instantly recognizable by her wavy golden blonde hair styled in space buns and striking turquoise eyes. Her life unfolds within a sphere of significant privilege provided by her father, the CEO of a major company, yet this upper-class existence is shadowed by instability and dangerous mafia conflicts tied to her family.

Beneath a cheerful and energetic exterior marked by wide smiles, Chloe grapples with profound loneliness. Her bold curiosity fuels her decision to run away from home following parental disputes, seeking escape from a life she finds devoid of genuine joy or meaningful connections. This vulnerability peaks in New York City where kidnappers target her, exploiting her family's wealth and mafia entanglements.

Her transformation begins when Kanna Kamui, a dragon in human form, rescues her from these kidnappers. An immediate bond forms as they share a day exploring the city, eating hot dogs, and experiencing Chloe's first taste of deep friendship. Their brief respite shatters when the kidnappers strike again, leading to a second dramatic rescue by Kanna. During this peril, Kanna reveals her true dragon identity—a secret shared only with Chloe—solidifying their unique trust. Empowered by this revelation and Kanna's encouragement, Chloe chooses to return home to Minnesota.

Back in Minnesota, Chloe nurtures her connection with Kanna and expands her world through visits to Japan, chronicled in the spin-off "Kanna's Daily Life." These trips immerse her in Japanese culture, blending tourist adventures in Tokyo's Akihabara district—like virtual reality arcades and gourmet tours—with intimate, everyday moments. She shares swimming lessons at school, plays games at Riko Saikawa's house, and attends barbecues with Kobayashi's household. Her initial interaction with Riko is rocky, strained by a cultural misunderstanding where Chloe accidentally insults Riko's house while comparing wealth, but this evolves into a genuine friendship over time.

Chloe's journey centers on overcoming isolation through these bonds. Her willingness to trust Kanna with her struggles and embrace new experiences in Japan demonstrates growing emotional resilience. She expresses gratitude for her friendships through lavish gifts, like sweets and even a pastry chef, reflecting her generous nature. By her arc's conclusion, she actively plans extended future visits, signaling a decisive shift from loneliness to a sustained sense of belonging.