Okay so if anyone is interested in this mother daughter duo's ending here are the spoilers
Spoiler!
During the party night, Aphelia sneaked into the duke's bedroom wearing only a robe. Upon entering the room, she removed the robe and approached the bed. As she touched the person on the bed, it was not the duke who spoke but it was Lulu who shouted with all her might that there was a thief.Maids, butlers and knights, immediately entered the room and saw the naked Aphelia. Duke Phaeraton, who was in the bathroom, also came after hearing Lulu's scream.
When Lulu asked why Aphelia came with only a piece of cloth. The adults were embarrassed and couldn't bear to tell Lulu what Aphelia was planning.
Then Lulu thought for a while and shouted that she knows. The adults were shocked. Then Lulu said that Aphelia is an assassin.The adults immediately framed Aphelia as an assassin in order to protect the baby's innocent mind, and Aphelia was put behind bars.
When Lulu asked why Aphelia came with only a piece of cloth. The adults were embarrassed and couldn't bear to tell Lulu what Aphelia was planning.
Then Lulu thought for a while and shouted that she knows. The adults were shocked. Then Lulu said that Aphelia is an assassin.The adults immediately framed Aphelia as an assassin in order to protect the baby's innocent mind, and Aphelia was put behind bars.I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule
you will find me in most romantic historical manhwa comment sections 
you will find me in most romantic historical manhwa comment sections 