Madam Vetrova

To Iris' relief, Lu Zihao's sinister smile only lasted for a few seconds. It was so like him to have total control of his emotions. He could change his expressions at will, only presenting what he wanted to show others. If he didn't want anyone knowing his real thoughts and feelings, then nobody would know except for himself. 

Unlike her who was straightforward, he was very much like the sly and manipulative Vetrov. In a sense, Evelina had been a huge anomaly to be born in the Vetrov family.