Huan Meng Qing Yuan (2023)

Both are dramas about a contract marriage that becomes true love. Both MLs have an ill grandmother.
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Both dramas have a contract relationship (siblings vs. marriage) between the main couple in order to please the ML's sick grandparent.

Both are contract marriages between the FL and a rich ML.
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Both are contract marriages between the FL and the ML.
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both the dramas has same male lead
both have kinda similar plot RBR was based on reality to fictional timeline and this one is based on time travel
both are mini dramas

Both are contract marriages intended to only last a short time that turn into genuine love. One is historical, the other modern day, though.

Both are mini dramas with a contract marriage between the main couple.
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Both are mini dramas with a contract marriage between the main couple.
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Both are mini dramas with a contract relationship between the main couple that becomes true love.
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Both are mini dramas with a contract marriage between the main couple that becomes true love.
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Both are mini dramas with a contract marriage between the main couple that becomes true love.
...............................................

Both are mini dramas with a contract marriage between the main couple that becomes true love.
...............................................

Both are dramas with a contract marriage between the main couple that becomes true love.
...............................................

Both are dramas with a contract marriage between the main couple that becomes true love.
...............................................

Both are mini dramas with a contract marriage between the main couple that becomes true love.
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