"Rena Kurozawa is a main character of the Japanese manga ""Devilish Romance"". Rena is a 17-year-old high school student with long, jet-black hair and bright blue eyes. She has a petite figure, but her fiery personality more than makes up for her small stature.

Rena is a straightforward person who always speaks her mind, even if it means getting into trouble. She is quick-witted and confident, and she has no fear of standing up to anybody, even if that person is a demon.

As the story unfolds, it is revealed that Rena is the daughter of a powerful demon and a human woman. Rena inherited her demon father's magical powers, which she uses to ward off evil spirits and demons that threaten her loved ones.

Rena's demon heritage also makes her an object of desire for many demons who wish to mate with her and produce powerful offspring. Rena, however, has no interest in becoming a mother of demon spawn, and she fights tooth and nail to protect herself from their advances.

Even though Rena is a strong and independent person, she is not without flaws. She can be reckless and impulsive, which often leads her into dangerous situations. Her stubbornness can also be a hindrance, as she refuses to back down even when she knows she is in over her head.

Despite her flaws, Rena is a likable character who is easy to root for. Her fierce determination and unwavering loyalty to her loved ones make her a formidable opponent, even against the most powerful demons.

Overall, Rena Kurozawa is a fascinating character full of depth and nuance. Her demonic heritage, magical powers, and fiery personality make her a standout in the world of manga, and her struggles to navigate her dual identity as half-human and half-demon make her a relatable and sympathetic protagonist."