A learning tool

As soon as those certain sounds echoed in the study room, Yu Chen's face instantly turned dark. There was disbelief and even disgust in his eyes as he looked at Zaki instead of the phone. 

"What? Why are you not watching? Eyes on the phone." Zaki ordered. He suddenly switched from a concerned and mischievous brother to a strict teacher. 

But Yu Chen didn't listen to him. His darkened face remained the same as he said, "You watch these things, too? I didn't know that you're this kind of man, even though you already have a wife." Yu Chen sounded so disappointed. He was looking at Zaki like his respect towards him had dramatically decreased - a reaction that made Zaki finally burst. 

Zaki noisily stood. He put his hands on his hips as he breathed deeply, not knowing when to even start. Damn! This guy… ugh! Should I just leave now?!