O Príncipe da Cobertura (2012)

The series tells the story of a man-turned-immortal, Bulgasal, who wants revenge from a woman with a mysterious past and present, who he deems responsible for his immortality and miseries from the past 600 years, hoping to free himself from his curse.
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Episodic saga from the first half of the 20th century follows Hero Hua from an ill-omened June day in his youth to a showdown 17 years later with a disaffected member of his martial-arts school, a Japanese named Invincible. Tensions between Chinese and Japanese, plus U.S. racism, mark the tale. Hero marries Jade, leaves her in China when he goes to America as an indentured servant, rebels against cruel labor conditions, and is joined by her in New York City where she has twins. Jump ahead 16 years: their son Sword comes to New York looking for his father. There, Sword hears many stories of his father, which we see in flashbacks, and the stage is set for the battle with Invincible.

I looked through recommendations and cant agree with many of them.
I think not only period drama and time travelling ones should be recommend, but show with similar mood.
So, close to this drama is the Rooftop Prince.
Both are funny, still different. Both have time travel, including mix period and modern.
I would say that humor in My Only Song is close to Waikiki, but the Rooftop Prince is just regular drama with regular plot and with lot of funny moments. In My Only Love Song plot is not the base of drama, the humor style is the base.

This is a short film that revolves around Kris Wu's single, Eternal Love, which tells the story of three characters: The general who fell in love with the princess who already has a predetermined marriage with the king of the barbarians. Because the general and the barbarian king caused the death of the princess, the heavens decided to curse the two of them and this curse can only be lifted by winning back the princess' love in the modern era.

They are both about ancient people time traveling to modern times. They have the same quirky feeling of how to adopt to modern technology and how to solve their own mysteries.

Both has Time Travel.. On both one of the couple is from an old era, On Rooftop Prince he is from Joseon Era, On Scarlet Heart modern girl travels back to Goryeo Era. Both has got great love story

It is similar from the concept as both the drama are about time travel. In Emperors and Me, three emperors travel to modern time while in Rooftop Prince, the Prince and his subordinates travel to modern time.

In both dramas they have people from the past coming to the future.
In RF it is the prince and his bodyguards that come forward in time.
In DA it is two women that come from the Joseon era into the future.

Zhu Yan Zhi, disguised as a man, seeks to learn martial arts with an elite clan. Once she begins her intense training, Zhu finds herself at odds with her trainer and superior, Liang.

Plots of both stories are really similar. Both are about unfortunate love in Joeson era that repeats again in our time to have happy ending. There is a little of fantasy also: mysterious time travelling in Rooftop Prince, and mermaids in Legend of the Blue Sea. Main characters have troubles adapting to modern world. And after all both series have charming love story.

In his early years, Oda Nobunaga picked up the nickname of "The Fool of Owari" due to his bizarre behavior. He later married Nohime, but their relationship was not very good. Their marriage came about as a political marriage between hostile neighboring regions. Oda Nobunaga accepted Nohime as his wife with an arrogant, authoritative attitude. Meanwhile, Nohime has an unabashed attitude and easily clashes with her husband. They are like oil and water.

One day, Oda Nobunaga’s enemy Imagawa Yoshimoto attacks Owari with his vast army.

Oda Nobunaga is devastated by the overwhelming gap in military strength, but Nohime encourages Oda Nobunaga to not despair and fight against his rival. Oda Nobunaga and Nohime draw up a tactical plan to take on the much larger army. They soon make plans to unify the entire country, which has never been successfully done.

Both dramas have themes of reincarnation and who you are fated to meet. In Next the main part of the story is set in modern times with long flashbacks to several historical settings. We're talking 2-episodes for each flashback; they're like mini-movies within the drama. Seriously, it's worth watching just for the flashbacks.

Both these dramas have many things similar like male lead being arrogant, development of love between the leads, 3 boys and 1 girl staying together and caring for each other,etc...
Both stories have entirely different plots but they somewhat give you the same feeling...
You're beautiful is idol drama whereas rooftop prince is a historical and fantasy drama
While i was watching you're beautiful it made me laugh too much and at the same time cry also...i had the same feeling in Rooftop prince also

These two dramas give you the same kind of vibe, involving: a bad female, the obsession of the male lead over his first love, framing, memory loss, stepping on your own family to get to the top and even the end gives you the same vibe. But Rooftop Prince is more a rom-com, while Innocent Man is definitely a melo-drama.

Both dramas deal with the time travel of scholars from the past to the future who end up staying with the female lead while searching for a way back to the past