Miyako Shirakawa is a main character in the anime series 'Imouto sae Ireba Ii.' She is a college student and a close friend of the protagonist, Itsuki Hashima. Miyako is portrayed as a kind-hearted and mature individual who often finds herself caught in the eccentric antics of Itsuki and his circle of friends. Despite not being an author herself, she is deeply interested in literature and provides emotional support and advice to Itsuki. Her balanced personality and empathetic nature make her a crucial part of the group, offering a sense of normalcy and grounding amidst the chaos.