His past causes him pain? What about the pain he caused to so many others? Tatsuyuki, Nozomi, Asoda, Akitora? Even Reika, who was well aware what he was doing to Tatsuyuki. And he's hardly a "proper man today." He's still a sick and twisted fuck. If anyone made him better, it was Tatsuyuki, by forgiving him and stopping Asoda from killing him and actually giving him a position in his organization where he could be near Akitora. But we have yet to see him become a proper man.
I love Rogi too, but it's not because I think he was ever a good person. Morally, the only saving grace he has is his love for Reika. Other than that, I like how he is a self-centered sexy spoiled slut who goes after what he wants regardless of how it effects others. If he didn't do it with such flair or was not so hot, I wouldn't like him at all. But he is driven with passion, and he isn't so much mean spirited as amoral. I like him.
I despise Rogi precisely for the reasons you cited. I find those characters so stupid and boring, used as a cheap sock value to easily impressionable people.
I have always hated broccoli, but my sister loves it. ╮(￣▽￣)╭
I love that we are getting a back story for this guy, even more so because he was so terrible in the original story! We can get to see his infatuation and his change as a person.
The only thing I hope is that this story just doesn't follow his past but also his present and future. I want him to be happy and be capable of finding love and stop being chained to his love of the past (especially because it causes him pain). His daughter is what has made him into the proper man he is today, but to fill the void he has in his heart, I feel that he must be able to go beyond his past and find another love.
I have to say, I'm always hesitant to read this story and the original again/the updates, because I somehow still feel a little bitter about his actions in the original and I still get angry (IDK, it just happens, not exactly sure why i get angry). And I also fear the rejection and awkward situations that can happen to Rogi because he is pitiful. But I've grown to become attached to this character, despite his bad actions, and I can't stop loving him!