A female university student was stalked by a man, and she was killed by that person. According to a scoop from a local newspaper, a police officer delayed processing a complaint from the victim and, instead, went on a trip. The prefectural police station is in turmoil because of the article, and they are trying to find out who the source of the leak is. Meanwhile, Moriguchi Izumi works in the public relations and public appeals department for the prefectural police station. She is suspicious that her best friend, Reporter Tsumura Chika, broke a promise to her and used the information for the scoop. But Tsumura Chika denies the accusation and insists that she is innocent. One week later, Tsumura Chika is found dead. Moriguchi Izumi is overcome with remorse and guilt, believing that if she hadn't suspected her friend, then she wouldn't have been harmed. Moriguchi Izumi now begins to investigate who is responsible for Tsumura Chika’s death. Adapted from the novel "Kuchinai Sakura" (朽ちないサクラ) by Yuzuki Yuko (柚月裕子).