"Yui Natsukawa is a main character in the Japanese manga series ""Ghost Terminal"". She is a young girl with a friendly, outgoing personality and a passion for photography. Yui is first introduced in the story as a classmate of the protagonist, Kazuya Yamagami.

Despite her bubbly demeanor, Yui has faced her fair share of tragedy. She lost her parents in a car accident when she was younger, and the experience has left her with a fascination with death. This obsession with mortality often leads her to take risks and put herself in dangerous situations.

Yui's photography is a central aspect of her character. She sees the world through her camera lens and uses her art to try and capture the beauty and meaning in even the most mundane of moments. However, her pictures often betray a darker side to her personality, revealing her preoccupation with death and despair.

As the story progresses, Yui becomes increasingly involved in the supernatural occurrences taking place at the ""Ghost Terminal"", a mysterious train station where the dead can remain trapped in a state of limbo. Yui's skills as a photographer and her untamed curiosity make her an essential member of the team trying to unravel the secrets of the station.

Yui's relationship with Kazuya evolves throughout the manga series. Although she is initially drawn to him because of his aloof and melancholy demeanor, she eventually comes to see him as a friend and ally, someone she can trust to understand her unconventional interests.

Despite her upbeat personality, Yui's character is fraught with contradictions and inner turmoil. Her fascination with death is at odds with her desire for life and love, and this conflict gives her character a depth and complexity that makes her an intriguing protagonist in the story."