"Miyuki is a main character in the Japanese manga ""MY OWN ALIEN"". She is a teenager with short brown hair and a punk rock style. Miyuki is portrayed as tough and independent, but also caring and loyal to her friends.

At the beginning of the story, Miyuki is introduced as a troublemaker and a delinquent who frequently skips school. She initially appears to be rude and standoffish, but as the story progresses, it becomes clear that she is simply guarded and reluctant to open up to others.

Despite her rebellious attitude, Miyuki is shown to be fiercely protective of her younger sister, whom she takes care of after their parents' divorce. She is also an excellent cook, and often cooks for her sister and her friends.

Miyuki's life takes a dramatic turn when she discovers an alien hiding in her apartment. Instead of turning the alien over to authorities, Miyuki decides to keep him hidden and help him find a way to return to his own planet. Through this experience, Miyuki learns to trust others and open up about her own feelings and experiences.

Throughout the story, Miyuki's relationships with her sister, her friends, and the alien grow and evolve. She becomes more vulnerable and emotionally honest, while still maintaining her tough exterior and independent spirit.

In conclusion, Miyuki is a complex and compelling character in ""MY OWN ALIEN"". Her tough exterior masks a compassionate and caring heart, and her experiences with the alien help her to grow and develop as a person. Whether she is protecting her sister or defying the authorities to help an alien friend, Miyuki is a strong and memorable character in the manga."