One and Only

Seeing OEO recommended under moli will make people afraid that moli will also have a tragic ending, but no it's not the reason of recommendation, but:
•Both dramas are palace setting.
•Both have male lead from the royal family, and both were fighting in wars for their country.
•Both dramas have a strong plot about palace politics (according to the novel for moli).

If Goodbye My Princess shattered you with its cold beauty and irreparable loss, One and Only will pick up the pieces — only to break them again, even more tenderly.

Both dramas understand that some loves are never allowed to live — but they endure anyway, stitched into memory.

They are both versions of the story of love between a princess/consort to the emperor, and the southern prince (Xiao NanChuan Wang).

A Tale of Love and Loyalty is 10-minute episodes adapted from Zhou Fu Yao's novel.
One and Only is 45 minute episodes adapted from MoBao FeiBao's novel.

Both are
- Chinese historical dramas
- Tear-jerkers
- have Master-Student relationship at first between lead couple
- Older Man-Younger Woman romance
- Star Crossed lovers

Both are Chinese historical romance dramas aired in 2021 adapted from the novels. One and Only is Wuxia and Ancient Love Poetry is Xianxia.
Both have FLs being sent into MLs to be a student, later romance develop between a Master-Student relationship. MLs are powerful.

Both are historical dramas starring Bai Lu as female lead character. Bai Lu's characters in both are very different from each other.
In One and Only, the leads have a Master and Disciple relationship, she calls him "Shifu". Also in the Legends, FL sometimes calls ML "Shifu" while she is pretending to be someone to get close to him.

I know both are very different dramas in a lot of things. Both shares same lead actress Bai Lu. I first fell in love with Bai Lu in Arsenal. Both are equally amazing dramas with great acting, chemistry and plots.

There's a suspicion among the imperial family to run for the throne. Even though the male lead of both series already take an oath to stay loyal, the suspicion is still exist. Male lead of both dramas are great general who has been spending their life for peace even though suspicion of them beings rebels exists. Both of the drama leads also can't be together in the end because of their priorities and responsibilities.

- Although they are different in genre, they have an epic love story.
- Same female lead. (Bai Lu's performance is legendary in this drama.)
- Best Drama soundtracks

Warning though: One and Only has a brutal ending, watch it at your own peril.

What I think is similar in both is the maturity between the couples. They understood each other so well.

While Shen Li & Xing Zhi bickered a lot, they still respected each other. Zhou Sheng Chen respected and treated Cui Shi Yi with a lot of care. They get their happy ending in the modern times (in the sequel Forever and Ever).

- Historical
- Court Scandals & Drama
- Opinionated and book smart Female Lead
- The Female Lead falls for a Male Lead she can't have in the end
- Male Lead has a tragic end
- Crazy/Obsessive One-Sided Love from an Emperor

These dramas have past (historical) and present (morden) counterparts of the lead couple's reincarnations. It was a sad romance in historical part. Both have talented lead actors and amazing chemistry between them.

These are Chinese historical dramas which also made sequels set in modern days. Both contains two parts.

Both are melancholy historical dramas with a master ML/disciple FL who are not allowed to be together and power struggles within the palace. Both dramas have a sad ending that is "fixed" in some way by a sequel (BCTSAL has a movie and OAO has a sequel series).

Historical chinese drama, both male leads are generals, cold to everyone but only warm and soft for their female lead