Vol 3: Ch 149 - Promotion and Fired out
After talking about business, Rei decided to pick up the kids from the office after informing them of what she discovers.
Rei: I'm going to pick up the kids first
Mei: Alright go ahead Sis but come back here after I'm done talking to this Manager Gyu, okay?
Rei: Ooh, okay.
These are the rules and positions of their family businesses
Aya - Head Account
El - Head Developer
Lyn - Head Chef
En - Head Resources
Mei - Head Manager
Rei - Decision Maker / Head Human Resources
Rei as the Decision Maker and Head of Human Resources of their family business she's in charge of hiring the applicants and one who decide who will be promoted, demoted, or who will be kicked out while Mei is an efficient Head Manager and whatever Rei decision she will do it without delay.