Dragon was a man who never second-guessed himself. From a young age, he plunged into whatever course of action he deemed best without looking back. Because of this he didn't hesitate to jump over the board of the marine ship and into Sea King infested waters when Garp revealed that he was taking (kidnapping) him to Headquarters to enlist him and he didn't falter as he gathered the scattered insurgent cells across the world to create his Revolution.
Dragon never doubted, not even in his personal life; that is why when he met the One, the woman who didn't need any other adjectives because there would never be another for him, he married her within the month. And that is why from the very first moment he held his daughter in his arms, he fell utterly in love with her.
Yet despite his usual straight-forwardness, becoming a father and somewhere along the way becoming an absent father had created a new side of him that was full of both doubts and second guesses.
He pestered Garp for hours about what exactly were his father's plans when he was forced to leave Luffy in his care (in his defense the man was insane even by a D's knee-high standards, so Dragon felt himself justified in quizzing him over every single detail of her placement in Fuschia until his father, exasperated, used his Fist of Love to shut him up.)
A few years later, when he had in his hands her very first bounty poster (thirty million, he was so proud of her), he left everything to go and hopefully introduce himself, but about halfway there he began wondering if that wasn't a horrible plan and what if she hated him?
So by the time he arrived at Loguetown he spent the whole time stalking the young captain while he talked himself into and out of going and actually talking to her. Afterwards he even felt kind of grateful with Smoker for taking that decision out of his hands, though of course the tattooed man took great pleasure in introducing him to the floor for daring to touch his darling daughter. (And Smoker could thank the fact he used a sea-stone jute to attack, because if he had been just a centimeter closer to her Dragon would have splashed him against a wall).
He did regret not talking to her when Garp, the bastard, called to brag that he had met her and her crew in Water 7 and even had the nerve to go and tell her about him. He could see it now, the man shouting his name and scaring all present to death, then laugh obnoxiously and tell everybody to forget everything he said. His day had soured even further when he caught some of the younger recruits fawning over the images of the three girls in his daughter's crew, but especially over the 'cute straw-hat wearing one'. He set one of the Lieutenants (granted, he would have suffocated the brat with his own top hat if he hadn't repeated 'sister' at least six times when they met) on them for a surprise Extra Training from Hell and felt a bit better.
That reminded him, he still needed to settle things with that Red-Haired for thinking that he could go around giving presents to someone else's daughters and (possibly) supplanting their rightful fathers.
All in all, however, he had been content with letting Luffy live her own life and make her own decisions.
Until now.
The rebel leader was brooding over a recent newspaper, the one detailing the War between Whitebeard and the Marines. To think that he had considered helping the Whitebeard pirates in attacking the marines' stronghold, just because it was a good chance to debilitate the government, but in the end had decided that the gamble wasn't worth the risk. He wasn't particularly bothered by the result, or even by the fact that his relationship to Luffy was now in the open; but, but… that!
A woman's chuckle snapped him out of his dark mood, and he looked up to glare at the Demon Child in front of him.
"Senchou-chan looks very happy." Robin said, and only the look in her eyes betrayed her mirth at the situation at hand.
Dragon refrained from moaning or scowling, since the archeologist had made very clear that her stay with the Revolutionaries was only a temporary deal. Still, Nico Robin was the best source of information he was going to find. Iva had gotten so tired of his ribbing that she had moved back to Okamaland as soon as he could, just to avoid their boss.
"Who is that?" He asked in what he hoped was an even tone of voice. Robin's not-quite-smile widened.
"Why, that is our first mate. Pirate Hunter Roronoa Zoro, 120 million at last count, though I think they have increased it now. He was the first to join, from what I gathered."
"And what is a pirate hunter doing on a pirate crew? He isn't a womanizer, is he?"
"Well, I don't think so. He seems more interested in booze than women."
A drunkard? His daughter was dating a drunkard? His daughter had kissed a—
"But I have never seen him drunk. He rarely drinks during the day, of course…"
That was a bit better.
"… he spends a great deal of the day training or sleeping on the deck."
No! He absolutely refused to let a lazy self-absorbed drunkard lead his daughter on! Over his dead body! He would not—
"I have to say though; I haven't seen anyone as dedicated to another as Swordsman-san is. He would give up absolutely everything for your daughter's sake. They form an incredible team together."
That shifty woman was toying with him. The Revolutionist intensified his glare in a way that would make lesser men cower. Robin didn't even bother to hide her smile, looking both mischievous and victorious.
"I'm sure you will grow to like him, Dragon-san."
The dejected father waited until the historian was out of his office before letting out a stubborn 'I will not'. He thought he heard a giggle nearby, and cursed when he noticed the ear that dissolved into pink petals as soon as he looked at it.