emeraldarrows

Both are mini dramas in which the leads love story ended tragically in the past and one of the leads has been waiting centuries for his love to reincarnate and get their happily ever after. However when he finds them, they are very different (different gender vs. completely different personality).

The same story/character, just different actors, one is a longer drama and one is a short mini drama.

Both are mini dramas about a famous FL who lies about the ML being her boyfriend, and the ML who has/develops a crush on her goes along with her lie.

Both are light mini romance dramas in a school setting.
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Both are mini dramas about a relationship between an idol and an average person.
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Both are mini dramas with a relationship between an idol and an "average" person.
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Both are fantasy dramas about the relationship between a human FL and a god ML. Both have common themes of the god meeting her before then forgetting, amnesia, fate, trying to prevent the FL's death, and rain/umbrellas.

Both have similar titles and are about the FL's life being controlled by a writer who makes her fate tragic.

The end of the drama.
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Season 2 of the drama.
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Both are short dramas about a boy who magically becomes a girl. Both involve sports (baseball vs. basketball) and have a High School setting. Both leads become romantically interested in their male childhood friend.

Both are short length BL dramas in which the couple has a sort of push and pull relationship between enemies and lovers, on opposite sides at times, working together others. Both MLs are lonely, isolated from society, and troubled. One of the MLs has a sister who is his only family, and the drama concludes with the trio living together.