Hong (Tok Nakamura) reported to members of Peace Law Firm that GI Technology's autonomous driving system was installed on the bus where the accident occurred five years ago.So, Ino O (Myo Ueshishi) noticed that he accidentally received a commission from an East Asian hospital that wanted to sue GI Technology.Uzaki (played by Mamiya Shotaro) believes that the truth of the bus accident can be indirectly approached, so Hong decided to accept the commission.

The client, Naoko (played by Horita), had questions about her father's death from subarachnoid hemorrhage two days after undergoing cerebral aneurysm surgery.Nanako was surprised by the hospital's explanation, so she entrusted the Peace Law Firm to investigate without telling her mother.Uzaki, Ino O, Takaido (played by Miyama Ryoshi) began to look for the hospital's signature doctor and the then knife-holding doctor, Riohei Kono (played by Yuyuki Hirakura).

During the investigation, three people accidentally encountered Kirishi (played by Oikawa Mitsuhiro) in the hospital and learned that his wife Aya (played by Emi Hong Ryo) was about to undergo a cerebral aneurysm surgery.After learning that the knife-holding doctor was the subject of Kono, Aya was confused about the situation of life-threatening.Whether the investigation continues or stops... the unexpected unfolds are waiting-.