One and Only

These two have similar vibes in terms of tragic love story and a couple stuck in politics and war. All the settings, beautiful and colorful cinematography, talented casts make even better. If you loved Goodbye My Princess, you will also love One and Only.

The shows give me similar vibes because of the somewhat taboo or forbidden love. Also, the pain and angst. The cp in OnO doesn't argue like in the Red Sleeve, but the apparent love but not admitting it at first is the same.

Both have sad ending n need season 2...worth to watch..recommended guyss....korean n chinese drama are the best...u guys need to watch this drama...

One and only is a prequel of Forever and Ever. Watch one and only first in order to understand the deep love of main characters.

Zhou Sheng Chen, raised by his brother the Emperor, becomes a loyal and skilled general. Cui Shi Yi, betrothed to the Crown Prince since birth, loses her voice and sees her former fiancé become a child Emperor. Returning to the capital amidst political unrest, Zhou Sheng Chen finds himself entangled with the Cui family when the Empress Dowager Regent changes Cui Shi Yi's betrothal to a sickly young companion of the Emperor. Zhou Sheng Chen takes Cui Shi Yi as his disciple to ease tensions between their families, and she is sent to Zhou Manor in the Western State. Despite their differences, a bond forms between them, but their relationship is strained by duty and the ongoing palace power struggles.

Both Bai Lu and Wang Xing Yue star in it
Both are historical Chinese drama
During the Lantern Festival, Princess Huai Si mysteriously dies at a banquet. Li Pei Yi, the chief guard, and Xiao Huai Jin, the Lingtai Lang, are tasked with the investigation, uncovering that the princess was the murderer. Betrayed and wronged, she avenged herself by punishing her betrayer and the daughter of a powerful family before jumping off the Penglai Terrace to escape her marriage fate.

Li Pei Yi and Xiao Huai Jin then uncover a series of strange cases in the inner court, exploring the fate of women in the Tang Dynasty harem. In the process, Li Pei Yi unravels the truth behind a ten-year-old murder and exposes a conspiracy involving the right prime minister and a concubine.

- Male lead was a honorable war general in the past life in a historical era, both of them were so loyal, powerful and highly respected, later lead their King/Emperor to have suspicions of their loyalty due to the evil people's manipulation. Both MLs were being killed with treason. (Early episodes in Goblin and One and Only drama)
- In the next life in a modern era, the leads are reincarnated as same people (Forever and Ever drama). Male lead is immortal, so he lives a long and lonely life alone (Goblin).

Both- tragic romance with politics. Both FL are being forced into the unwilling marriage with the King/Crown Prince. They both have another guy they love deeply.
Big spoiler - sad endings.

- ML is a war general with strong rooted principles he goes by
- FL is a noble from a high-ranked family
- FL had an arranged marriage
- Well-written characters
- Slow burn
- Beautiful Cinematography, Costumes and Action scenes
- Great ost
- No kiss scenes but meaningful eye contact
- Political Conspiracy Plot
- Tragic Ending

Both have a bittersweet romance between master and disciple.

Both MLs also made a vow to stay unmarried for life but their resolve got shaken when they meet the FL.

Very Brave and devoted Male lead
they are similar in styling , vibes and era I think
One and Only is more to the romantic side but Nirvana is more to the political side
non the less ,,,, I feel their similarities watching it

Both MLs are royal generals who position is viewed as a threat by the court, despite him having no interest in the throne, and the court tries to prevent him from marrying or having children. TSPL ends happily, OAO tragically.

It is a costume detective suspense romance drama, set in the Wanli years of the Ming Dynasty, telling the story of the beautiful man County Ling Panyue and the terrorist servant Yang Caiwei in the process of solving a strange case, from mutual disgust to mutual love and love.

"Queen for Seven Days" revolves around the tragic love story of Queen Dan Kyung and King Jung Jong during the Joseon Dynasty, focusing on the challenges they faced due to political strife, betrayal, and tragic circumstances. It's set in historical Korea and portrays the struggles of characters within the monarchy.
It's similar to One and Only in the sense that they're both historical dramas. They both have tragic love stories as a result of a fight for the throne. Both princes had their own army and group of followers who were loyal to them. Just like in One and Only, it portrays the struggles of the people during a period of monarchy or tyranny so to say. In both dramas the kings and the princes are in a love triangle with the female leads. Both dramas have a theme of sacrifice, as the main characters have to give up their happiness and freedom for the sake of their country and people.

One and Only and Feud both ask the same heartbreaking question: what happens when love is buried under duty, grief, and impossible choices? In both, Bai Lu shines as a heroine whose love is deep, enduring, and quietly devastating — Cui Shiyi with her patient devotion, Hua Ruyue with her compassion twisted by loss. Both stories build romance out of restraint: love that’s not shouted from rooftops, but lived in sacrifices, glances, and the weight of what’s left unsaid. If you’re drawn to relationships where silence speaks louder than words, where love is fierce but fragile under the hand of fate, both dramas deliver in spades.

Where they part ways is in tone. One and Only is tragedy wrapped in tenderness: it breaks your heart gently, giving you fleeting moments of warmth and family before fate snatches it away. Feud, by contrast, leans harder into grief and moral ambiguity — love entangled with anger, misunderstandings, and wounds so deep that even “happy” moments carry shadows. It’s heavier, more relentless, and better suited for viewers who want to sit in that ache and explore how love and hatred can blur into one another. Both dramas will make you feel, but in very different registers: one a beautiful heartbreak you’ll cherish, the other a storm of sorrow that lingers long after the credits roll