Both are mini dramas in which the FL travels back in time. Both dramas have a school setting and a quiet ML.

Both involve time travel/time slips between a decade or so, bringing the leads together.
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Both are mini dramas in which the FL finds herself having traveled back in time to her high school years. Both MLs are quiet types.

Both are mini dramas in which one of the leads (ML vs. FL) travels back in time to their high school days.

Both are mini dramas that involve time travel by the FL between adulthood and her school days.
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Both are mini dramas with a vulnerable, bullied FL who marries the rich ML who is in a wheelchair. Both couples must deal with scheming, nasty relatives.

Both are mini dramas in which the FL is married to the ML who is in a wheelchair, wealthy, and a stranger to her. She is mistreated by her new family and those around her.

Both have fairytale vibes/nods to Cinderella with the shoes. Both MLs are popular, FLs are a bit awkward and unpopular students.

Both are mini dramas with the same actors as the ML and FL, and both have great chemistry. FL is their reunion after MR.

Both dramas have a dark, mysterious vibe, and both FLs are assassins. Many of the characters are hiding secrets.

Both have the same director and a very unique "look" and aesthetics. Both have layered and complicated protagonists.

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