Natsume's Book of Friends (2008)

S1E4 Shigure and the Girl

During the "Trial of Courage," Sasada, the class president, discovers Natsume's secret. She enlists his help to locate the spirit haunting the old school building. Despite Natsume's insistence that he can't see anything, Sasada is relentless in her pursuit. Meanwhile, the spirit named Shigure, angered by the impending demolition of the school, takes hold of their classmates in a fit of rage, escalating the tension and urgency of the situation.