Yandere TTSNL x reader

Hi, so my last book wasn't very good, but this will follow the plot line as much as possible only Y/n will be 3 years old when Arien and Arjen were five. She was the youngest out of the triplets. Arien and Arjen were abused whereas Y/n was always kept secured by them. Y/n will look like Enisha from the youngest princess manhwa. The emperor, the princes, her twins were all obsessed and had an unhealthy amount of love towards her.