Ai Kinoshita

Ai Kinoshita is Nanako Saeki's inseparable best friend, known for her straightforward personality and unwavering sense of justice. Throughout the story, she serves as a steadfast protector, keeping a sharp eye on Takao Kasuga's increasingly bizarre behavior and ultimately going to the authorities when the situation spirals out of control. As one of the few clear-headed observers in the narrative, she remains a crucial figure even years later—holding vital clues about Nakamura's whereabouts that prove indispensable to Kasuga's search for the truth.