Yeah fuck the dad. He's just lucky Iga was strong.
Even then I thought it was a really sh*ty thing that his father did. Here is this guy who is in his late 20s, early 30s, who has obviously worked his tail end off for his father's company, in the belief that the company will eventually be his. He has gone out and garnered fame for the company and gotten recognition in the field, to the point that there have been multiple write ups in magazines and other publications about his designs, and he himself. Then his father turns around to him and goes, "You should choose your own path in life! You are so much like me!" Personally I would have taken that as a, "Get out of my company, there is only room for one successful person here," attack. Truth be told, that is how I read it, too!
Iga was right in all of his reactions to his father. His father obviously has decided to side with his youngest son for what ever reason (which no reason IS actually given- you are left to assume that the father perhaps decided or guessed that Iga was gay and wanted to hurt or punish him for it), and never really says WHY. Even at the end he never says why he isn't telling his youngest to go follow HIS path. The whole story with the father is very frustrating, and yes, Iga has many reasons to react the way he does.
I've also kept wondering why the 2 brothers couldn't inherit jointly. By the looks of it they had different strengths, and as long as their father didn't interfere, got along together. Seems like they would have been able to run the company together just fine, and then it wouldn't matter if one was gay. It would actually simplify things a bit.
It was a nice change to read manga that just took the time to let the relationship develope between the 2 at a natural pace. I really enjoyed that. I also enjoyed the portayal of the different experiences one can have of being gay with out it getting heavy-handed.
But on the subject of Iga's dad; Am I really to believe he's so socially inept and poor at communicating? Think about it. Anybody would be seriously hurt if a their boss and parent took away a big project they had put alot work into with NO explanation and gave it to someone else (let alone a sibling), only to be put on a small project. And at the same time to be informed that one's younger brother is being made heir as they aren't suited, without being given any positive context or reasons for the decision. It would quite obviously feel like parental rejection and favoritism, and likely lead to sibling resentment. I don't see anything childish in Iga feeling this way.
I enjoyed about every other aspect of this story but the one mentioned above. Somehow I knew that Iga's dad was going to be one of those misunderstood types. Personally, I can't fault Iga for any problems he may have had if that is how his father acted. Really there must have been a much better way to tell your son that you think he needs to re-evaluate his choices and path in life. Indeed he managed in the end, when ironically Iga didn't need to hear it any more.