"Haruna Takahashi is a central character in the manga ""The Tainted Half"". She is a high school student who has a very troubled past. Haruna's parents died in a car crash when she was only five years old, leaving her with her older brother, who was struggling to make ends meet.

Despite her difficult childhood, Haruna is a bright and talented girl. She excels in school and is also a skilled athlete. However, she is very closed off and doesn't like to let people get close to her. She is often seen as aloof and distant by her classmates.

Haruna's life takes a turn when she meets a mysterious boy named Akira. Akira seems to have a connection to Haruna's past and he begins to draw her out of her shell. As Haruna gets to know Akira, she begins to realize that there is more to her than she thought.

Haruna's relationship with Akira is both complicated and intense. She is drawn to him, but she also feels afraid and uncertain around him. She struggles to open up to him and let him into her world.

Throughout the story, Haruna goes through a lot of emotional ups and downs. She is forced to confront her past and come to terms with the demons that have been haunting her. As she does so, she begins to grow and change in ways that she never could have imagined.

Overall, Haruna is a complex and nuanced character who is both relatable and inspiring. Her struggles and triumphs make her a memorable and beloved character in ""The Tainted Half""."