Both are light historical mini dramas in which the ML is after something and pretending to be a eunuch in order to accomplish his goals. Both FLs are free spirited.

Both are historical mini dramas in which the ML is pretending to be a eunuch.
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Both are historical mini dramas in which the MLs are pretending to be eunuchs. Both FLs are cheerful.

Both are historical mini dramas in which the ML is a pretend eunuch.
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Both are mini dramas in which ML is a pretend eunuch with great power and influence and the FL is a cheerful person who has fallen on hard times. Both couples have a past connection.

Both are slice of life Japanese dramas in which the leads cook for each other. In both, one lead is closeted or hasn't come to terms with his sexuality, while the other is open about it.

Both are slice of life, food centered BLs with a similar vibe, but the contrast that one is a steady and stable relationship and the other is one that has broken up.

One involves time travel and the other doesn't, but both involve the FL murdered/attempted murdered by her husband and then getting a chance at revenge. She meets the mysterious ML who assists her in her goals.

Both FLs are betrayed by the man they love who attempts to murder them. They survive with a new identity and returns for revenge, crossing paths with the ML who has many secrets.

Both FLs are married and their husband attempts to murder them. They then take on a new identity and return for revenge with the help of the ML.

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Both are a slice of life with a small town/countryside setting and focus on food. Both have a similar vibe and tone.