Shiga, a mountaineer, departs from his secluded cabin and heads back to Tokyo to search for Megumi. She is the missing daughter of Tatsuko, Shiga's late best friend, and Yoriko, a woman Shiga has harbored secret feelings for since before Tatsuko's death. His probe leads him into the realm of "compensated dating" and alienated teenagers. What he uncovers implies that Megumi might have been kidnapped by a powerful and influential pedophile. To rescue the girl and restore the self-respect he forfeited when his best friend passed away, Shiga must pierce the veil of silence and take actions the police are too afraid to attempt.