Lady Emanc

Prince Murong Jing He of the Great Yan Dynasty reclaims Qingzhou, but after his victory, a fire destroys the city. Accusations spread that he ordered the destruction in retaliation for a perceived betrayal, earning him the title of "Butcher General." In the chaos, Mei Lin loses her family and vows revenge. She joins the Shadow Works, enduring harsh training to become an assassin. Her first mission is to kill Murong Jing He, and she infiltrates his court disguised as one of the Xiyan beauties. However, she discovers that the mastermind behind her mission is none other than Murong Jing He himself.

(Source: MyDramaList)

~~ Adapted from the novel "Chun Hua Yan" (???) by Hei Yan (??).

But in a strange turn of events, she manages to return to the age of fourteen, when the tragedy has yet to occur, her family is still alive, and she is still the pure daughter of a military lineage. With the knowledge of future events, she vows to protect her family and avenge her son and daughter.

same author
revenge story
the glory ? march release

They are the same:
Strong female lead out for revenge
Wants revenge on ex
Cold male lead who is very talented in the art of fighting.

Looks like a similar plot with FL going back in time and trying to change her future in the palace.

-Unique and amazing FL
-Supernatural element
-Smart Leads
-Moderate amount of cliche scenes
-You will root for the fl to break away from her destiny
Fortune writer like a scent of time is a hidden gem that is really well made.

Red flag ML who is ambitious for the throne and deceives and used the FL in a similar way to get what he wants. Tortured, painful love. Similar angst levels and also good production quality.

Both series revolve around themes of reincarnation, love across multiple lifetimes, and complex relationships between immortals and humans. Also, both shows feature rich fantasy worlds filled with gods, immortals, and celestial beings, as well as emotional storytelling centered on the idea of eternal love and sacrifice.

With a colossal background, the two performers are very compatible and have good chemistry. The story is political, revenge, but also very funny.

Same Actors: Zhao Lusi and Leo Wu

In Love Like The Galaxy, the two main leads are Zhao Lusi and Leo Wu, while the main leads in The Long Ballad are Leo Wu and Dilraba Dilmurat, and although Zhao Lusi is not the main lead in The Long Ballad, both actors have previously played in a drama together that aired not so long ago.

The young Cheng Shao Shang was left behind because her parents had gone off to fight in the war. In order to protect herself from her scheming aunt, she had to be extra diligent while pretending to be the opposite. However, years of estrangement have made it difficult for them to become family again.

Lacking love her whole life, Cheng Shao Shang is both pragmatic and insecure in choosing a partner for marriage. She encounters three men—the emperor's adopted son Ling Bu Yi, the talented Yuan Shen of Bailu Mountain, and the aristocrat Lou Yao who each have their pros and cons. Although the road to love is bumpy, she never regrets any choice she makes. Through her interactions with Ling Bu Yi, she unintentionally becomes involved in the mystery surrounding his family and his identity. The two grow from their experiences and work together, upholding the righteousness in their hearts to resolve a national crisis.

Costume based on the dynasties close to each other
Heavy political intrigues
Redemption
Characters including princesses, crown prince, concubines, empress... and they have storylines.
FL has hesitation in love and trust due to grow-up background.

Both of the Male Leads get connected to Female Leads after an accident and now have to stay close to them in order to protect themselves they have to protect the female lead.

Both male leads are demons.

Female leads are headstrong and think for themselves.

Similar forced proximity and entangled fate vibe.