emeraldarrows

Both MLs are morally gray, supernatural beings who enter into a contract of protection with the human FL.

While a side story in HETH and the main story in TKA, both plots regarding the emperor are the same in which the male heir dies and his sister is disguised as him and forced to take his place.

Both have a Republican Era setting and a plot centered around tomb raiding and supernatural incidents.

Both are mini dramas with a scrappy ML protagonist, a Republican Era setting, and a plot centered around tomb raiding and supernatural events.

Same character and ML actor, different cases and plot. Both are mini dramas within the same universe.

Similiar vibes. Both have grumpy immortals seeking death who save a pregnant mother from being killed by a car and end up having a connection to the unborn child. Both cohabitat with colorful and supernatural beings.

Both are BLs in which one ML is an undercover police officer and the other a criminal. FFY is lighter in tone than Ash.

Both are BLs with a romance between a police officer and a criminal.
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Both are BLs in which one of the MLs is a criminal and the other a law abiding profession.
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Both are BLs in which one ML is a police officer and the other a criminal.
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Both are BLs in which the MLs are a criminal and an undercover cop dealing with underworld crime while carrying on a star crossed romance.

Both are BLs with a love story between a police officer and a criminal.
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