is a Japanese voice actress born in Sapporo, Hokkaido. She is affiliated with Production Baobab.
Hioka was born in Sapporo on July 15, 1991. She wanted to become a voice actor after watching late-night anime during high school, such as The Melancholy of Haruhi Suzumiya, Macross Frontier and Eden of the East, and learning about voice-over work. After convincing her parents, she moved to Tokyo to study at a vocational school.