Ok, I think I get the family tree in this transmigration. Elicia and Damien are the biological bloodline but Rosetta only has the same mom as Damien. Rosetta's mom gave birth to Damien with the duke and had an affair with someone else which resulted in the birth of Rosetta. Afterwards, the man killed Rosetta's mom and Elicia and Damien's father remarried. Since Elicia is the youngest, she has a different mother after Rosetta's mom died. This is just a theor
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