Vol 5: Ch 362 - Ken and Ren
Both Jang Twins followed their Mom right away and now they are inside in the study room for their Family briefings but before that Mei, as their Mom warns their manners just now.
Mei: So what's with that attitude of yours Ken and Ren? I'm not lacking enough of disciplining both of you, right?
Both : (Answered in sync) sorry Mom and yes I know.
Mei: So then why did you become like that? (Notice that En also entering at the study room but didn't greet him since En signaling her not to.)
Ken: It's because Mom, I have a cousin that happened to be the same age as you and Auntie Rei then it's my first time meeting her so it's really kind of awkward for me, right?
Ren: Yup and not only that one Bro Ken, because that Sis Yuka is our niece, right?