Shinji Searches for Birthmarked Girls to Escape Millionaire Legacy

Shinji, raised in an orphanage after losing his parents, is approached by a maid named Zero, who reveals his grandfather’s demand to inherit a vast business empire. Uninterested in wealth, Shinji seeks to marry his childhood friend Sae. However, his grandfather offers an escape: find a girl with a unique birthmark that appears only after she climaxes. Torn between loyalty to Sae and the bizarre task, Shinji faces a dilemma, navigating love, duty, and an unexpected challenge to secure his freedom.