Akari Ōsaka appears in the anime as a character the protagonist encounters, established as his childhood friend. Her initial reluctance to converse stems from his persistent staring, prompting him to directly request to see her panties. Following resistance—including telling him to die—she eventually complies. Born May 26, her zodiac sign is Gemini. She measures 158 cm in height, weighs 49 kg, and has blood type B.