Shigeru Hidaka is the father of Yumemi Hidaka. Employed in the advertising sector, his job frequently demands late hours, leading to his habitual late returns home. Within the narrative, his role centers solely on his familial connection to Yumemi, serving as a parental figure who reflects the everyday dynamics of her home life. No substantial background story, character development, or significant narrative contributions beyond this familial context are detailed across any official media.