Did she try to do anything to bridge the gap between the Hyuga family's main house and branch house? Did she know any of Konoha village's pivotal people, like Naruto's parents, the Third Hokage, or any of the Uchiha clan?
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Top 10 Anime Characters We Want To Know More About
What exactly is Dragon's bounty? (Seeing as he's the most wanted man in the world, it must be the series' highest amount to date.) What's the story behind his facial marks (which he didn't have when he witnessed Gold Roger's execution)?
What we don't know about Vicious is: what was his background like prior to joining the Red Dragon syndicate? Why did he, at one point, enlist in the Titan War, and did the Red Dragons know about that or not? How did he really feel toward Julia?
Prior to that, he was born under poor circumstances, and as he grew up he discovered he had a knack for assassination. Beyond that, however, we don't know anything else, including where exactly he was born, or even his original name, if he had one.
Where was she born? What kind of life did she live growing up? Why is she so driven to look out only for herself, even at the expense of her partners-in-crime? What are her true feelings, if any, toward Lupin?
Where exactly did he get his power to kill things in one blow from? After all, even in-universe characters such as Genos have said how ridiculous it is that Saitama's stated (and ordinary) training regimen could have given him his incredible abilities.
What we still don't know: what exactly is the Tendo King's true identity? What are his goals? Why does he want the Galactic Leyline, other than for more power? How far does his power and influence reach?
He also proves to be one of the more sympathetic members of the group, as he's fighting for the sake of his love for a man he knows will never love him back, plus he also knows he'll never be as strong as Shishio's right-hand man Soujiro, yet he still fights for Shishio's cause nonetheless.