He's just feeling indignant for his sister.
His sister is such a good girl, one glance and you can tell she's a proper lady, unlike Jiang Xiao who seems to draw attention with her looks and figure.
"This is my wife, I am her husband."
Meng Xinian thought he was being kind and patient, so he actually explained it with such a sentence.
Wang Yuklin, who had initially widened his eyes, now widened them even more.
"What? Wha–what?!" He was so shocked he stuttered, "Xiao Chiang, you got married already? Then how come, how come you're still involved with Zeng Erran?"
"Don't blame me for not reminding you, watch your language," Meng Xinian cracked his knuckles with a popping sound. "If you keep using those words, watch your teeth."
Cheng Cheng burst out laughing: "Why watch the teeth?"
"As Supervisor Guard, I can't hurt people easily, I can't just cut off his tongue to feed to the dogs, right? So the only choice is to knock his teeth out one by one."
