Gwishinboneun hyungsa, Cheo Yong - Season 1 (2014)

Cheo-yong and Sun-woo investigate a mysterious secret at an all girl school that has lead to the death of one of it's students. Na-young wants to find out who she was in life.

Cheo-yong and Sun-woo investigate the murder of several employees at local factory.

Cheo-yong and Sun-woo try to solve the murder of a young man's body that was fished out of the lake. Na-young tries to prove her usefulness to Cheo-yong.

Someone is killing off members of their family and collecting the insurance money. Cheo-yong tries to find out who.

Someone is tracking down and killing three rapists that escaped justice for killing a young girl years earlier.

Cheo-yong tries to hunt down a mysterious killer whom he believes is an old enemy from his past. The rest of the team tries to figure out exactly what Cheo-yong is looking for.

Cheo-yong tries to track down Dae-suk while the rest of the team has been removed from duty.