Someday or One Day
Created by Chi-Feng Chien
A time-travel romance that uses transmigration and doppelgängers to explore grief, second chances, and the possibility of rewriting fate across two timelines.
Yu-Hsuan lost her boyfriend Chuan-Sheng in plane accident. She then discovered Chuan-Sheng and a girl look alike Yu-Hsuan both appeared in a photo taken in 1998. Accidentally, she had backed to 1998 and met a boy looked alike Chuan-Sheng.
Clusters
Where to watch
Not available in United States — it streams in other countries.
Questions people ask
Is Someday or One Day sad? Yes, very. More sad than 96% of series.
Is Someday or One Day violent? Not especially. Less violent than 70% of series.
Does Someday or One Day leave you hopeful? Somewhat. More hopeful than 69% of series.
Is Someday or One Day easy watching? About average. Almost exactly mid-range.
Is Someday or One Day scary? About average. Almost exactly mid-range.
These describe how the series comes across across its whole run, compared with other well-known series. They are not a content list — nothing here was counted or checked episode by episode, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this series gives you that nothing else will, and whether it delivers.
Familiar shape, done well.
How unlike any other series this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble
Like Someday or One Day
Nearest across the full emotional profile.
Same Mood as Someday or One Day
Nearest on what's most distinctive about this one.
Like Someday or One Day, But Darker
Similar, pushed toward heavier and more intense.
Like Someday or One Day, But Lighter
Similar, pushed toward warmer and easier.
Like Someday or One Day, But Less Popular
Same territory, far fewer people have seen it.
