
First thing: I loved the story. It was beautiful.
But one thing bugged me immensely: They just established their relationship and without notice the uke just resigns from his work and goes independent? I mean there are huge risks involved and huge changes to your lifestyle. Could you please just discuss it with your partner so you can plan this out together?

There's no way around it. The seme's good at his job and the uke just entered there. Without knowing they'd meet, the uke must have already had this planned out.
Plus the fact that the their workplace forbids office romance. Sexual tension in the office be hard for them to avoid considering they'd just paired. And the stereotype that they have on omegas "sleeping their way to the top" and whatnot.

Okay, does somebody recognize the guy who waited for Igarashi (the "uncle") in the car? For me he looks like the lawyer of the Ryuusei clan. But that would be to huge a blow for team Makio, no?

I don't think that is the lawyer Shirasu. This new guy's face looks different, more delicate. http://www.mangago.zone/read-manga/kuchizuke_wa_uso_no_aji/bt/sa-v3c003/pg-1/?av=1
Naroo telling a heartwarming story of a century long friendship - My throat clenches but I'm fine.
Yunho suffering in bed. - I'm fine.
Hanwool crying and breaking down in front of Yunho - My eyes are getting wet but it's okay.
A crying tiger cub in a dream? - .... That's just foul play....