Extra Girl
エキストラ・ガール
Shion and Kuon are twin sisters. Shion, an idol, dies by suicide, but Kuon believes she was murdered. To uncover the truth, Kuon enters the entertainment industry as an extra. She works with Ryuuto, an actor who was Shion’s partner, to investigate. As they dig deeper, they uncover disturbing aspects of the industry. A clue known as "Black Onyx" and a drug are linked to the case. The connection between Kuon and Ryuuto also evolves as the investigation continues.