Ep. 10: Nine surrenders to police while Five pursues him amid Athena Project revelations and a bomb threat.
Nine turns himself in at police headquarters, demanding a press conference at 8:00 p.m. or he will detonate an atomic bomb prototype. Shibazaki learns from Shunzo Mamiya that the Athena Project aimed to restore Japanese morale after World War II defeat. Five, hospitalized due to her deteriorating health from these experiments, rushes to reach Nine. Twelve, urged by Lisa, joins the pursuit after initially feeling shame. Five’s men chase the police convoy on the Shuto Expressway but discover the truck is a decoy. Enraged, Five disables Twelve’s motorbike and stops the actual truck. She kills her assistant, confronts Nine, and confesses her lifelong desire to defeat him. Acknowledging her impending death, she expresses her love, asks him to live for them both, and kisses him before committing suicide by igniting gasoline. Nine hijacks airwaves to announce the bomb countdown has begun, unmasking as Sphinx for his final farewell.
Episodes
- Ep. 6 · FBI joins investigation as Nine and Twelve head to Haneda Airport for a chess game with Five.
- Ep. 7 · Nine and Twelve engage with Five's chess game while police uncover the truth behind the Sphinx video.
- Ep. 8 · Media blames Sphinx for bombing while Shibazaki investigates Athena Project origins
- Ep. 9 · Nine and Twelve retrieve hidden nuclear materials while Shibazaki learns the truth about the Athena Project.
- Ep. 10 · Nine surrenders to police while Five pursues him amid Athena Project revelations and a bomb threat.
- Ep. 11 · Nine's nuclear threat triggers panic as Sphinx's plan unfolds in Tokyo.