It’s so funny to me that the boss demeans Kazuki at every opportunity, calls him a peasant, poorly skilled, a bad influence. And yet it’s Kazuki who has gained in three years (probably less) what this man never could — the absolute loyalty and devotion of his son.

Like, the boss has tried to get Rei to take over the organization and accept his role in the family legacy, twice, and each time he’s dragged his feet reluctantly.

Meanwhile, all Kazuki has to say is, "Rei, we’re keeping this kid and raising her as our own" or "Rei, we're sneaking into the zoo to spy on our daughter because she’s mad at me and forgot her lunch" and Rei will sigh and groan but immediately go along with it like: “Ok, babe, whatever you want.”