石黒 真樹

She is Narumi's friend and a kogal.

She has a hair band, smiling eyes, a wide forehead, and rather large breasts. She is in the same grade as Narumi. Unlike Narumi, she has good grades. She has a mild-mannered personality and a soft tone of voice.

She is a fanatic for cute things. She thinks of the protagonist as a toy in a different way from Narumi. She says that he likes the way his cheeks are soft and fluffy....

She plans to ask for Narumi's help in seducing Akira.