In both, the MLs are doctors and the FLs meet them when the pair save a person who collapsed on the street, inspiring the FL to follow him by becoming a nurse. The two then meet at the hospital on the FL's first day but the ML is different than she remembers.

Both have a nostalgic, bittersweet feel of past school days and the unlikely friendship between a group of kids to adults.

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While one is historical and the other not, both are mini dramas about a group of strangers trapped in a place where they must solve a mystery and stay alive to escape.

Both appear to be set in the same time period and are historical dramas with palace intrigue and a star-crossed romance between a royal lead and a non-royal lead who works for the palace. The royal lead had a non-typical upbringing (either raised as a commoner or isolated from the palace). Both dramas have a subplot in which a foreign priest arrives and is hidden by the main characters.

Both dramas are about a water god in love with a mortal woman who has an odd destiny/fate with them.

Both are short dramas in which the ML is a water god who falls in love with the human FL.
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Both FLs are destined brides to the ML who is a supernatural being. Both dramas have an identical umbrella scene in the first episode.

Both are mini dramas in which the ML are water gods destined to marry the mortal FL. One is historical, the other modern day.

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Both having cloning/someone trying to save themselves or someone they love by creating clones. The original human and the clone have very different personalities.

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