At that time, Tangning was still unaware that the so-called top class special effects technician was also a part of the brothers' tricks.
She only found out after Mo Ting explained the entire incident to her. It seemed, Han Jie had also been dragged down by his brother.
She couldn't let the two brothers continue to string her along and implicate her. Apart from attacking them psychologically, she had no other option. It wasn't like she could kill them!
So, that's how she came to think of their mother.
Hence, she gave Long Jie a phone call, "Can you locate their mother?"
"What are you thinking?"
"I want to give these brothers some 'treatment' for their illness! If we keep suppressing them, they will continue to retaliate. Especially since Han Xiuche doesn't care about his public image. I reckon, even if I'm completely destroyed, he still won't stop! So, at the same time that we drag him out, we also need to make a move on his mother!"