"Miyako Oshima is a major character in the Japanese manga, ""My Secret Roommate"". She is a 20-year-old college student who lives with the protagonist, Kenta Murai. Miyako is an attractive young woman with long black hair and piercing green eyes. She is often seen wearing stylish clothes and her appearance is very important to her.

Miyako is a very intelligent and ambitious woman, with a strong sense of determination. She is a hard worker and takes her studies seriously, often spending long hours studying in the library. She is also very independent, and doesn't like to rely on others for help.

Despite her tough exterior, Miyako is caring and compassionate, and has a soft spot for animals. She is especially fond of cats, and has a pet cat named Mimi. Miyako is also a talented cook, her specialty being traditional Japanese cuisine. She often cooks for Kenta and his friends, and her meals are always a hit.

Miyako's past is shrouded in mystery, and she is not very forthcoming about her personal life. However, it is revealed that she comes from a wealthy family, and that she has a strained relationship with her parents.

Throughout the series, Miyako becomes involved in a complex love triangle with Kenta and another character, Yuka. She is torn between her feelings for Kenta, and her loyalty to Yuka, who is her childhood friend. The romantic tension between the three characters serves as a major plot point in the manga.

Overall, Miyako Oshima is a complex and intriguing character, with a depth and complexity that makes her stand out from other manga heroines. Her intelligence, determination, and compassion make her a role model for many readers, while her romantic struggles make her relatable to anyone who has experienced the complexities of love."