See You Again (2021)

Both are mini dramas in which one or both of the leads time travels back to their school days and tries to correct the mistakes of the past.

In both of the shows the male lead time travels to the past to save the female lead because she always dies in the future.

Both involve time travel by a camera with film still in it, and one of the leads returning to the past to try to save someone who died back then.

Plot is nearly identical, both main characters are stuck in a time loop trying to save their loved ones. The ending of both of them are also quite similar.

Both are mini dramas in which one of the leads travels back in time and tries to save the person they loved in school who died back then.

Both are time travel drama. In both, the FL dies all the times and ML travels back to the past to save her.

Both are mini dramas in which one of the leads time travels back to their school days in an attempt to save a loved one who died back then.

Both are mini dramas in which one of the leads time travels back to their school days in an attempt to save a loved one who died back then.

Both are mini dramas and involve time travel.
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Both are mini dramas in which one of the leads time travels with the help of an object (camera vs. comic book) back to their school days and attempts to change the past to save a classmate who they love and is dead or missing/presumed dead in the present day.

Both dramas are time-travel romance drama.
In See You Again, FL dies in a car accident and ML uses a camera to time-travel back in time, hoping to save her.

Both dramas are about one of the leads suddenly dying and the other time traveling back to their school days in an effort to save their life.

See you again and Blue birthday are both time travel drama which is also related with a camera. Both of the drama are also based on high school.

In both See You Again and Closer to You Female lead is dead in current timeline thus, our main leads travel back in time ie, their high school days to save their lover.

time travel
parallel dimension
first love
accident
trying to save the other
time travel
parallel dimension
first love
accident
trying to save the other