Ruka Minazuki

Perplexed by her memories of the past and worried by the deaths of her friends, Marie Shinomiya and Tomoe Nanamura, Ruka journeys to Rougetsu Island to try and find answers where she isn't alone in her curiosity as two other friends named Misaki Asou and Madoka Tsukimori also seek the truth of their past life on the island. Ruka knows from her clouded memories that some tragedy occurred in their childhood, but she wasn't prepared to face the darkness lay that hidden within the island. Despite warned by her mother to not return to the island, Ruka follows Misaki and Madoka, searching for her lost memories. She arrives at the abandoned sanatorium, Rougetsu Hall, where the girls were photographed ten years earlier. As she explores, she catches glimpses of Madoka disappearing out of sight. She finds an old camera on the floor in the Kunihiko Asou Museum, and discovers that this camera is able to capture and Exercise vengeful spirits and wraiths.