Miyako Hashimoto is the elderly aunt of Shun Hashimoto, the protagonist of The Stranger by the Shore. She lives with her nephew in a house near the beach in Okinawa, offering him a stable home after his parents rejected him for being openly gay. Physically, she has grey hair and dark-grey eyes, typically wears glasses, and is often seen in an apron with a cloth wrapped around her head, reflecting her domestic habits. Her personality is kind and sympathetic; she is an active baker who makes bread regularly and displays warmth toward others. In the story, her role is that of a supportive guardian: she provides Shun with a safe, non-judgmental space to live and write, and she treats his boyfriend Mio Chibana with genuine acceptance when he comes into Shun’s life. Her motivations center on caring for her nephew and maintaining a peaceful household. She does not undergo significant personal development in the narrative, instead serving as a steady, nurturing presence that contrasts with the rejection Shun experienced from his parents. Her notable abilities are not supernatural or combat-related; rather, she is skilled in baking and in creating a comforting, homely atmosphere. Through her quiet reliability, she enables Shun to heal from his past and build a new life.