Miyako Goshiki is a supporting character in the manga and anime series A Galaxy Next Door. She is the wife of Ken Goshiki and the mother of Shiori Goshiki. In terms of appearance, she has sand-brown hair that is tied up in a low bun with bangs hanging on the left side, and green eyes. Her personality is defined by a very strict and overcontrolling nature. Although she genuinely loves her daughter, she is excessively strict in raising her as the family heir, and her words are often harsh. This approach creates a strained and difficult relationship between mother and daughter. Her primary motivation stems from her role as a mother and the perceived duty to prepare Shiori for her responsibilities as the heir of the Goshiki family. Within the story, she functions as an antagonist figure in Shiori and Ichiro Kuga's personal lives, as she opposes their relationship and the engagement that forms between them. Her role brings external pressure and conflict to the central romantic plot. Regarding development, the character remains largely fixed in her strict and oppositional stance throughout the narrative, serving as a consistent source of familial tension. No notable supernatural abilities or special skills are attributed to her; her influence is grounded in her authoritative position as the matriarch of the Goshiki household.