We all know he married Shakky the former empress, but I had so many question probably from newer fans on youtube channel by people asking why rayleigh treat her like a daughter and made boa trust him so much to lean on him rather than her sister or granny nyon (gloriosa)
He does save her live but actually it goes deeper than that way back in the past.
On the SBS Oda has given states they has live together for some time
They were kidnapped when they still 12 yo then spending torturous 4 years in marijoa before fisher tiger help free them, She and her sister should be around 16 on the time where they meet rayleigh who hide them in their house while the world government actively search for runaway slaves.
Assuming they already learned basic armament haki before kidnapped,
he might be also give her training regarding haki if he realizes she had conqueror haki potential thus no wonder she can use 3 form of haki make sense if she indeed learned from both of them.
Especially since shakky is the former empress finding kuja girls that been through so much maybe she felt a little guilt too and want them to become stronger.
At the time she and gloriosa both left amazon lily to be with their preffered lover to avoid love sickness maybe the fact that she doesnt has children also plays crucial role since we seen her interaction with strawhat crew in her bar she somewhat has caring nature to chopper even nice to brook.
Probably paralel to luffy they live and train there for 2 years, since it states she was officially become empress and warlord when she just 18 yo and has reign as empress and warlord for around 10-13 years.
At the time they must contact the current empress tritoma to help let them go back to amazon lily but finding out she encounter love sickness and by seeing potential with boa and her devil fruit power they decided to raise her as the successor since the title not hereditary by blood but rather passed down the strongest warrior, being saved by two former empress gloriossa and shakky probably given her advantage since she has her predeccesor approval, thus tritoma aware of her illness pardon gloriosa to come back and live in amazon lily to continue mentoring and teach her the kuja custom
Thats why they not sent them in hurry to amazon lily since they need to prepare her first before able to properly claim the title by her own power
Thats why despite being so disrespectfull to him by pinching his nose and threaten to turned him to stone he does nothing to let go from her or respond normally when someone do that to you. Rather he just calmly explain and patiently let her calmed down by herself.
If you think about it she hates men eventhough she has respect for rayleigh
You didnt pinch someone nose if you dont close with them. In fact when she first met him again when he comes to amazon lily for luffy she greets him happily and quite nice eventhough she distracted with luffy and late noticing his presence
Also many people has missed this but it is Shakky women instinct that predict that Hancock fell for luffy and help him to got to impel down despite rayleigh pretty sure of her hatred towards men and government she will not do that, both knowing her personality well eventhough at the time we dont know their relationship with boa
Despite knowing she is strong and independent as pirates he still worried,
Thus as soon as he knows the warlord system abolished he swim back to amazon lily accompanied with shakky this time,
eventhough she doesnt has any responsibility anymore to protect amazon lily and despite letting rayleigh face off countless danger by himself over the years
He has pretty chill enterance when confronting Blackbeard some video maybe cutted but boa called his name in weakened voice and next scene is where he unleash his haki shown more furious and said he doesnt like him despite the two never had personal dispute before, maybe his protective instinct take over
Especially if he feel a little bit bad about not knowing or try saving Ace, he probably cannot sit still to lose them anymore, despite knowing he cant win due to his age
Some fans speculate he is indeed her father but that highly unlikely since they have different surname 'Boa' and 'Silver', plus they probably wreck sabaody and raze marijoa if their own daughters kidnapped, Furthermore there suspicion of boa sisters are fathered by different men due to the difference looks and body eversince they are children where sandersonia is fitting to be descendant of buccaner or giant with bigger body proportion and face structure compared to her sister, but hey if oda officially confirm it in the future I wont have complain.
Fans have such fun theory thought that mihawk is their real son due to his mastery of sword armament haki and his similar hairstyle to shakky thus can explain his monstrous power if he were to have those two as parents
However beside him and boa many illustrator agree marguerite will be likely fit those criteria as she has the same hair color as young rayleigh and similar base character design also pretty much the strong candidate if boa were to abdicate her title, but again not official
Well despite haki now more well known by audience and reader it doesnt change the fact that he'll not draw the kuja the same as other character when using armament haki (their body parts or weapon wont change colors) for aesthetic purpose though he can joke that they had high mastery of haki that they able to conceal it like normal, I probably can see him change his mind though if he want to create an epic battle
The most funny use of these are the use of haki on their feet so they can run and jump using heels without causing any discomfort or pain, those heels are probably millitary grade material lol, and the reason why mostly her combat style are using martial arts that focused on the leg are because fundamentally women leg are stronger than their hands which you can find it easily a fact you can notice if you like to go to the gym and try the equipment for leg excercise after a women
When while after marineford arc when luffy is gravely injured despite the urgency amazon lily custom still prohibit men entering the island when law need to take care of him despite boa as empress given special approval, but granny nyon never made such remarks for rayleigh and luffy, she never states that they are not allowed there by the law,
rayleigh maybe suspected to have gain those privilege because he save amazon lily and their empress life,
but luffy hasnt help save amazon lily eventhough he gained such respect so the only thing that make sense maybe the law has a special exception for the partner chosen by the empress to enter the island without objection thats why its natural for them to expect his return despite having strict rules, well their empress can died if they cannot cure their love sickness probably they had to make such exception make sense for whoever their empress fall in love with
People assume he also the one who teach shanks haki thats quite possible considering the timing, but I cannot not notice how he babysit her compared to the boys he teach, basically thrown them to danger to fend of for themselves to get stronger maybe because he doesnt want to trigger her past trauma by being harsh on her as a men,
Thats also make sense if she turned out weaker than his other student since he didnt force her training as harsh as the others
They probably bickering to each other and she won't admit it but they are the only one she always can depend to for comfort and he'll always save her everytime she's in danger,
Oda really create solid background for the plot and make him figuratively father figure. Afterall he loves figurative parents more than the biological one if you think Dadan and Whitebeard will done the best for their sons, while Dragon, Yassop and Roger leave them alone for many years
