Miho's best friend is in her 9th year of school and belongs to class 2 at the same institution as Miho and Mashiro. Despite being close friends with Miho, she is unaware that Miho has feelings for Mashiro. This comes to light when Takagi asks about Miho's dream, which leads him to reveal his own feelings towards her. Although she likes Takagi, she expresses uncertainty about their relationship and tells him she will have to think it over. Eventually, they start dating. It is revealed that Miyoshi plans to attend Yakusa North High School, the same institution as Moritaka and Takagi, and eventually does so.
She marries Takagi.