[x] Poll: Learn to tolerate Ren
I don't think that it's be physically possible, barring mad acts of Jashin, for Hazou to truly 'make up' with Ren. Hazou's had years of being pissed on by the Kurosawa clan, who really
are the reason for his miserable upbringing. From Hazou's POV (or my perspective of Hazou's) Ren is only helping Hana because of political convenience, and otherwise is trying to keep her at an arm's distance (literally, since she's living in an house not even in the compound). He doesn't have enough of a reason for them to make up.
What I could see Hazou doing, instead, is to
tolerate Ren. She's a person of political power and can be useful, and the fact that she's the head of the clan that fucked Hazou's childhood over isn't enough of a reason for us to not make use of her as a resource. It's like Hana and Mari, except Hana barely bothered with the 'tolerate' part.
With that in mind, I don't think Hazou can go very far with tolerating Ren for long. Over a decade of poverty is a long time to overcome. What I would recommend is in line with what
@Inferno Vulpix suggested: use Shin, since he
definitely isn't responsible for our suffering, and learning to tolerate him is the first step to learning to tolerate Ren.