beta
It's not about the blessing per se, it's about how his father's influence could affect them in the long run. I mean Ukano is a catch, and let's admit Uke is a not so well known manga artist. I mean I would want to at least have son in law who's almost on par with my son so at least I'll have the peace of mind.
Tbh, I think the dad Ukano, being sly and cunning as he is, saw the potential in uke and is aware him not having the confidence. That's why he stressed the fact that he is sticking to a series that does not sell and used his influence to cancel it. Maybe he wants him to start fresh and aim higher and use Ukano being his editor to help him succeed. I mean that's what partners should do right?