Betrayal／Promise (S01E04)

In 1995, a fatigued Miho becomes gravely ill, prompting her brother Nishiki to worry deeply for her well-being. Unfortunately, he becomes ensnared in Doujima's manipulative plot that takes advantage of his distress. Fast forward to 2005, as Kiryu and Yumi pursue Aiko in Osaka, they cross paths with Chairman Goda of the Omi Alliance, who demands they commit to returning 10 billion yen by midnight the following day.