Kabu is faced with a crucial decision when his father appoints him as the heir to the Umezaki group, a responsibility he hesitates to embrace. Meanwhile, Sagawa, seen as the group's rightful successor, challenges Kabu's allegiance by presenting a difficult choice: relinquish his company or Nirasawa. Nirasawa holds a dual role in Kabu's life, serving both as a convenient tool and a captivating lover whose unexpected charm has ensnared Kabu's heart. Amidst these intricate dynamics, will Kabu choose to part ways with Nirasawa? This story unfolds four years after the events of Bi no Isu, delving into themes of loyalty, love, and difficult decisions.