Naze Shoujo wa Kioku wo Ushinawanakereba Naranakatta no ka?
Native title: なぜ少女は記憶を失わなければならなかったのか？
Also Known as: Why did the girl have to lose her memory? ,
When the suspect of an arson case refuses to cooperate with the investigation, the detectives search his house and find a locked-up little girl. She doesn't talk and there are no clues to her identity, so assistant psychology professor Narumi Saku is asked to counsel her. ~~ This drama is inspired by several real cases. (https://mydramalist.com/11486-naze-shoujo-wa-kioku-wo-ushinawanakereba-naranakatta-no-ka)
OAL: This features an unorthodox way to save a child from an abusive parent, and a psychologist winding the maze that is a child's hidden memory.
Video and subs separate but they are out there.
The special I watched in French (the subs are available online)