Sayounara, Watashi no Reiguu Seikatsu - Party de Koe wo Kakete Kita no ga Yabai Otoko Datta Ken

Leticia is forced into a precarious position after her father takes a mistress, leaving her isolated from her family. To protect her mother, who suffers from a chronic illness, and to secure her own future, Leticia makes a resolute decision: she will find a husband, regardless of whether she becomes a second wife or a fifth wife. However, her attempts to form meaningful relationships with men end in disaster, with those she associates with either being ruined or arrested. Her life takes an unexpected turn when she becomes embroiled with the son of Marquis Brennan Macbeth, a notorious playboy, whose involvement in her life will prove to be both thrilling and treacherous.