Hina Hoshino is a human character who appears as a friend to the main protagonist in the Kami-sama Minarai: Himitsu no Cocotama anime. Her background places her as one of Kokoro Yotsuba's best friends, and she is also friends with another character named Ayaka Otsuki.

In terms of appearance, Hina is depicted as a young teenage girl with straight brown hair that falls past her shoulders and is cut with short, square bangs across her forehead. Her hairstyle is distinctive due to the colorful bands she uses: three pink bands on one lock of hair and two yellow bands on another lock on the opposite side. Her eyes are blue. Her typical outfit consists of a light green dress adorned with a darker green bow at the top, worn over a white long-sleeved blouse. Her hair length has been described as reaching her waist.

Hina possesses a friendly and polite personality, showing a particular fondness for animals, especially rabbits. She is also noted to be a cosplayer. However, she is not very athletic and does not perform well in sports, a trait that contributes to her tendency to lose confidence easily. Her birthday falls on March 3rd, which is the date of Hinamatsuri, the Japanese Doll Festival, and her first name, written in hiragana, is the Japanese word for doll, linking her to this celebration. Her surname, Hoshino, combines the characters for star and field, evoking the image of a starry field or a star-filled wilderness.