Lee Gon witnesses his father’s murder and later discovers a mysterious gateway connecting two parallel worlds, beginning his lifelong mission.

He crosses into another world and meets detective Tae-eul, who struggles to believe his extraordinary claims.

Strange events and clues begin to challenge Tae-eul’s skepticism as Lee Gon searches for answers.

A growing connection forms as both worlds show signs of being linked through hidden forces.

She enters the Kingdom of Corea, witnessing royal life and realizing the truth about parallel worlds.

A potential military crisis forces Lee Gon to act as king while maintaining his promise to Tae-eul.

Lee Gon and his allies navigate both worlds, uncovering disturbing connections and secrets.

People with identical faces across worlds emerge, raising deeper questions about fate and identity.