"Ena Hoshijima is a major character in the Japanese manga ""The Regressor and the Blind Saint"". She is introduced as a young girl with dark brown hair and amber-colored eyes, often dressed in her school uniform or casual clothing. Ena is a high school student who initially appears to be shy and introverted, but she has a deep love for books and literature that drives her to seek out new experiences and adventures.

Ena's unique ability is that she has the power of time regression, which allows her to go back in time to a younger version of herself and experience events again. This power is activated by her touching a specific object, and Ena becomes the ""regressor"" when she uses it. As the story progresses, Ena learns to control her power and use it to help those she cares about.

Ena's backstory is also explored throughout the manga. She comes from a wealthy family and was once a talented pianist, but an accident left her blind in one eye and ended her music career. Despite this setback, Ena remains optimistic and is determined to find a new purpose in life. She begins to volunteer at a local bookstore, where she meets the other main character, Yui Hirasaka.

Ena forms a close friendship with Yui and acts as a mentor and confidant to her. Together, they navigate the challenges of high school and the mysteries of Ena's power. Ena also has romantic feelings for Yui, and their relationship becomes a central focus of the story.

Overall, Ena Hoshijima is a compelling and complex character who defies stereotypes of disability and gender norms. Her strength and resilience in the face of adversity make her a powerful protagonist and a fan favorite."