Expanding their activities, the enjo kosai group "Sweet Angel" finds its relations deteriorating with Kuroshishi-kai boss Moriyama, leading to open conflict. The Kuroshishi-kai captures several Sweet Angel members for interrogation but fails to extract any useful information. Amid this stalemate, new intelligence emerges: Sachiko, the daughter of the powerful Swan Group with deep influence in political and financial circles, is revealed to be a key leader within Sweet Angel. Using this revelation as bait, the Kuroshishi-kai captures Sachiko and subjects her to intense torture. Yet, driven by her pride as a high-ranking member and overwhelmed by twisted pleasure, Sachiko endures—unraveling a shocking truth behind her identity.