Okitama and Amano investigate a series of mass faintings at an elite all-girls school; Okitama's suspicions turn toward the biology teacher.

Four years after a prominent researcher goes missing while piloting a light aircraft, his left foot and parts of his plane suddenly fall from the sky.

Tasked with investigating a spate of suicide jumping incidents, Okitama and Amano speak to the fourth victim's wife; she shares a chilling revelation.