As for why he doesn't call him 'brother-in-law,' it's mainly because it's still too early for that—calling him 'brother' feels more appropriate.
Mei Mengchen glanced sideways and immediately spotted Pei Ziyu sitting next to her. Noticing that Pei Ziyu seemed to be looking at him too, he didn't shy away, carefully sizing him up in return.
Honestly, speaking just in terms of looks, Mei Mengchen was quite satisfied. His social circle isn't big, but in his circle, none look better than him, so Pei Ziyu was at least decent enough for his sister.
Plus, they'd talked on the phone a few times, so they were somewhat familiar. Pei Ziyu was the first to speak, "Chenchen, do you remember me? I'm Pei brother, the one who talks to you a lot on the phone."
"I remember." Mei Mengchen nodded seriously to show he remembered.
Pei Ziyu, thrilled, immediately handed over the toy he'd picked. "This is a gift for you. Hope you like it."
