Both MLs pursue the FL even when there seems to be little hope of winning her affections and she is antagonistic toward him and misunderstands him often.

In both dramas, the FL is a current day doctor and the ML is a doctor from the historical palace who travels to the modern day and tries to adjust to the modern world while falling in love with the FL.

Both dramas have a similar title and vibe. Both MLs were ill and received treatment which left them with non-human abilities or characteristics. Both FLs are quirky and something of a disaster at their jobs, and accidentally learn the ML's secret, which leads from an initial distrust/hostility between the two to a close relationship.

Both are fantasy dramas about parallel worlds and characters from one world crossing over into the other.

Both are a contract relationship with a rich CEO as the ML. Both MLs have a phobia (crowds vs. the dark) that the FL helps them overcome.

Both MLs are rich with a phobia (water vs. the dark).
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Both are contract relationships with overbearing CEOs as the ML.
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Both MLs are wealthy CEOs who have a traumatic past and issues as a result who end up cohabitating with the poorer FL.

Both are GL stories with a historical setting.
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Both are GL stories with a historical setting.
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Both are GL short films with a historical setting.
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Both are GL short films with a historical setting.
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