Masked Man's confrontation with Chen essentially meant working for Alexander for free, a thought that infuriated him to no end.
In fact, Masked Man had anticipated this issue from the start, but he hadn't expected Chen to be so tenacious!
The time it took to deal with Chen was so extensive that it ended up handing Alexander an unwarranted advantage. The mere thought of the precious inheritances that might exist within the aperture filled Masked Man with an intense murderous aura.
He was just one step away, only a single step!
At that moment, Masked Man overheard a conversation between Jovienne and Theronil not far off, reminding him of Susan, whom he had captured earlier.
This girl's talent was incredibly unique, a delightful surprise for him.
Acquiring Susan meant that he could finally commence his long-delayed project of creating a Human avatar.