The fact that Christian dared to instruct Yonina to steal the proposal meant he had already anticipated such a scene. He was completely unafraid.
Even if Michael found out that it was Yonina who stole the proposal and managed to find proof of it, he could only act against Yonina. There was nothing he could do to Christian.
Furthermore, Yonina was on his side but she was carrying Michael's child. Christian had absolutely nothing to fear from either of them. His intention was to have Yonina steal Michael's proposal, then use Michael's proposal to win the bidding.
Christian's words angered Michael.
Micheal closed the distance between them and reached out to grab Christian's collar.
Angrily enunciating each word slowly, he asked, "I will ask just one more time. How did you get your hands on my proposal? Who is your mole?"
