4等

 Mata follows the story of a French secret agent who is wounded during a covert mission in Niger. During this operation, her colleague Antoine is captured, leaving her both physically and emotionally scarred. Upon her return to France, Mata volunteers for a counter-espionage mission in the Alps. She suspects that this new assignment is somehow linked to her traumatic experience in Africa. As she delves deeper into the mission, Mata becomes increasingly convinced that her superiors are concealing critical information from her. Determined to uncover the truth, she operates outside official channels, risking her career and her personal safety.

　　擔任臨時教師的君島穗香(澀谷凪咲)，目擊了一個女學生從屋頂跳下的瞬間。當她在暑假補習班上課時，又注意到有個不應該存在的學生。不久后，穗香與補習班的三浦瞳(早瀨憩)、前川武(山時聰真)等學生們，得知了與那個女學生有關的令人震驚的事實。