Demon Justitia possesses the body of Judge Kang Bit-na and must punish criminals.
Da-on receives unexpected news while protecting Min-jeong. Bitn-a's first infernal trial begins.
While reveling in her string of executions, Bit-na encounters someone unexpected.
Bit-na’s infernal trial begins once again for Bae Jayeong’s misdeeds. “Bad adults must be punished.”
While trailing Bi-tna, Da-on finds himself at a secret demons’ meeting. A horrific incident occurs.
“Why do you keep interfering?” Will Bit-na escape Da-on and conclude her infernal trial?
So-young suspects serial killer J is back. Meanwhile, Da-on remains suspicious about Bit-na’s identity.
So-young disappears. Bit-na worries for Da-on but concludes Choi Won-joong’s infernal trial as a demon.