Forbidden Love

Min Woo, a police detective, raids an organ trafficking ring to find that the perpetrators aren't human.

Si Yeon is sent to assassinate Min Woo but fails because Min Woo's pendant is identical to hers.

The Gumiho Tribe is met with internal conflict. The SICS asks Min Woo to join them as their agent.

Min Ju prepares a blind date for Min Woo and Si Yeon. The elders begin plotting against their chieftain.

Elder Nam alerts the others of the assassination. Si Yeon tells Elder Nam that she didn't kill Elder Kang.

More elders end up dead, and Elder Nam confronts the chieftain. Min Woo confesses his feelings to Si Yeon.

Having learned that Min Woo is her long-lost friend, Si Yeon begins to feel more attracted to him.

Si Yeon falls out of favor with the chieftain after the chieftain witnesses her sparing Min Woo's life.

The SICS finds out how to tell apart a Gumiho from a human and raid the scene of organ trafficking.

The warriors learn about K, a key member of their opposition. Rang has seen K with Chae Yi and suspects her.

The higher-ups order the SICSs to perform a joint operation with the Gumiho. The two groups meet.

The tension between the Gumiho and the SICS keeps rising when another agent is killed by Chae Yi.

Min Woo and Si Yeon leave together to get away from everything. The SICS finds a new weapon to aid them.

Chae Yi intercepts the liver Min Ju was to receive for surgery. Min Ju dies, and Min Woo rejoins the SICS.

Moo Young tells Si Yeon of Chieftain Shin's true intention and tells her to leave the tribe with Min Woo.

Si Yeon learns about Chieftain Shin's true intentions but still decides to accept her fate nonetheless.