From a conversation with Aiko Sasaki (Nana Katase), Kosaku Kuroda (Yuji Oda) learns that a series of incidents involving Tsuyoshi Shimomura (Teruyuki Kagawa) may have been caused by a drug-induced litigation case. To confirm the truth, Kuroda visits Susumu Yoshimura (Hiroshi Okochi), the president of Brighton Japan Pharmaceuticals, who was a defendant in the case, at a new product launch. However, Yoshimura is murdered in the restroom, and Kuroda is held at gunpoint by Shimomura. Shimomura threatens Kuroda to drop the case, revealing that his wife Tomoyo's (Mahiru Konno) death in a standoff 11 years ago wasn't from a stray bullet but was a targeted killing, before escaping.