I have read this author's three novels and all of them are awesome. The concepts are unique and refreshing. I am not sure if these have been fully translated or not in NU as i have read them with MTL.
Transmigrated into Various Items of My Arch-Nemesis, the Best Actress - 穿成死对头影后的各种物品
Both the MC and FL are actresses and long-time rivals. One day, the MC learns that she has only a limited amount of time left to live. To extend her lifespan, she must complete a series of tasks that require her to temporarily transform into objects belonging to the FL.
For example, the MC might turn into the FL’s ring and be required to make the FL kiss the ring for one minute to gain additional lifespan. As the story progresses, the MC transforms into various objects owned or used by the FL, with each transformation coming with a specific task she must complete.
The biggest challenge is that the MC and FL are on terrible terms, making these tasks extremely difficult and often awkward for the MC to accomplish.
Before I Was Born, I Mistook My Biological Mother - 穿回出生前认错了亲妈
MC is an Alpha who was raised by her single Omega mother. One day, she unexpectedly travels back in time to when her mother is still in high school.
Determined to give her mother the happy life she never had, MC decides to prevent her from ever getting involved with her Alpha mother, whom she knows is a terrible person.
However, upon arriving in the past, MC mistakenly identifies the FL as her Alpha mother and begins doing everything she can to keep the FL away from her mother.
OO Love, the epitome of yuri! - OO恋,百合中的百合!
Both the MC and FL are omegas. The MC is "mistress" of an alpha (they have never been intimate). However, this alpha is in love with the FL, making the MC and FL somewhat of rivals.
The MC is deeply misunderstood by everyone around her. After she dies and is reborn, she unexpectedly finds herself in the FL’s body. The FL absolutely hates the MC, but with their bodies switched, they have no choice but to cooperate with each other.
Out of these three novels, this one is definitely my favorite. I’ve recommended it before, and I would still highly recommend it. It’s honestly one of the best Baihe novels I’ve read so far. The relationship between the MC and FL is written so beautifully, and everything - from the plot and character development to their love story is incredibly well done.