The Moon Flows in This River: A Body Swap Romance Fantasy

MBC’s new Friday-Saturday historical K-Drama, “The Moon Flows in This River,” is set to premiere on November 7, 2025, at 9:50 PM KST. This highly anticipated romance fantasy series stars Kang TaeOh and Kim SeJeong in a captivating body swap narrative that blends royal intrigue with heartfelt drama. The story promises a unique twist on the historical genre, coming from a network known as a “master of historical dramas.”

A Tale of Swapped Souls in a Historical Drama

“The Moon Flows in This River” explores the chaotic and comedic consequences of a soul swap between two individuals from opposite ends of society. The central plot revolves around Crown Prince Lee Kang and a traveling merchant named Park Dal, who accidentally switch bodies. This forces the stoic prince to navigate life as a commoner, while the free-spirited merchant must contend with the rigid protocols of the royal palace. This premise sets the stage for a compelling romance fantasy that challenges social norms and explores personal growth under extraordinary circumstances.

The Central Body Swap Conflict

The core of this historical drama lies in the body swap between the main characters. Lee Kang, burdened by his royal duties, and Park Dal, who cherishes her freedom, must learn to understand each other’s lives by literally walking in their shoes. Their journey is expected to be filled with hilarious missteps, dangerous situations, and a burgeoning romance that defies their drastically different backgrounds. The series will delve into how they adapt and what they discover about themselves and each other through this supernatural event.

Meet the Characters of “The Moon Flows in This River”

The drama features a talented cast bringing to life a complex web of relationships and ambitions within the palace.

Kang TaeOh as Crown Prince Lee Kang

Kang TaeOh portrays Lee Kang, a crown prince serving as regent. Haunted by a past tragedy, he has lost his ability to smile and carries the weight of the kingdom on his shoulders. His life takes an unexpected turn when he wakes up in the body of a common merchant, forcing him to confront a world he never knew.

Kim SeJeong as Park Dal

Kim SeJeong plays Park Dal, a bright and resourceful traveling merchant who has lost her memories. Her independent life is thrown into chaos when she finds herself inhabiting the body of the crown prince. She must navigate the treacherous political landscape of the court while trying to uncover the truth about her own past.

The Supporting Cast and Political Intrigue

Adding to the drama are key supporting characters. Lee ShinYoung plays Lee Woon, a deposed prince, adding a layer of tension to the royal succession. Hong SuJu stars as Kim Woohee, the daughter of the powerful Left State Councilor, who finds herself in a forbidden love affair with Lee Woon. Meanwhile, veteran actor Jin Goo plays Kim Hancheol, the ambitious Left State Councilor who schemes to make his daughter the crown princess to solidify his own power, creating a major obstacle for the main characters.

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