I feel like both are very similar to each other being that they have a/an:

- Contract Marriage/Marriage of Convenience
- Disapproving parent

and there is more ofc, but this is what I can think of rn; they also kinda have a similar vibe.

Both plots can be compared based on the synopsis.
- Twins that are estranged
- relates to the twin sister getting into a relationship with the ml because of the other twin
- The older twin convinces the younger twin by using money, to cure close relative
- switched identity

- Both focus on a pregnancy that was a mistake
- Both have the ml's brother and sister in-law that have trouble with getting a child
- Both have the ml trying to have love in their relationship