Age five, he got one powerful helper at same time two new fiancee without knowing, he heard from the Great Elder that the whole thing is planned by his great great grandfather without thinking.
His great great grandfather bet with Senju Hashirama that if someday there's only one man left in his Usagi Clan, Senju is willing to send their precious single princess as fiancee for the last Usagi Clan man.
Of course, this is just small joke at first but who thought that Senju Hashirama take it seriously and made a arrangement for the future heir's like this.
As five years old, he can't help but to look at Great Elder and said." The only Princess of Senju left the village, and she is almost on her 50s, do you think that is embarrassing for her?"
The Great Elder smiled and said." Little Prince, maybe you don't know but, Lord Hashirama insisted on this to Princess Tsunade since she is little, of course the Princess try to fight back but only if she can find a partner then she can break th arrangement."
"But who knows, even today, Princess Tsunade is still single, she stop bothering with this but still keep sending letters with me trying to check our condition."
".... She accepted the arrangement?"
"No." The Great Elder shake his head and continue." But only if you defeated her to a gambling, that way she is willing to be your big wife."
"..... But I heard that she is the Big Sheep of Gambling World, she never win at all that's why she have huge debt outside."
"That's why I said you don't need to worry."
"What about the Hyuga Clan?"
"Thats the arrangements of your late mother before she got pregnant with you, she insisted to we'd you to her best friend, and the is the wife of the current Hyuga Patriarch."
"But I heard that the couple still don't have children right?"
"Yes, but no own know in the future right?"
"..... Yes."
Xin then look at the Second Gold Finger he get, a Pet Type Angeloid Type Alpha: Ikaros.
She is beautiful, powerful, slightly airheaded, but she is the most needed helper he need right now.
Ikaros dis not just being herself but also she bring all her powerful tools.
Aegis
Ikaros can generate a nigh-invincible energy shield that can cover 360 degree angle and can defend against almost all attacks. Her shield can make her almost invulnerable when it is successfully deployed. It was stated she could use this shield on a planetary scale. She can manipulate the energy of this shield such as making frontal shields or deploying shields around her enemies. Stated to contain Hiyori's collapse of space and time so it won't affect the continuum.
Artemis
She has the ability to fire multiple to even millions of explosive projectiles from her wings that could follow its target forever. Power varies depending on Ikaros' seriousness. She can even fire millions of them like she did to the Babylonian population. Artemis is fast enough to cross the world within seconds in Uranus Form.
Apollon
Also known as Apollon, is a devastating bow. Its arrow is very destructive and can destroy a whole country in one shot when she was weak from Nymph's ambush. It was used to destroy the Tower of Babel. She used these to spam Synapse when she was ordered to destroy the land. The land is so strong it was not unaffected by the Big Bang apparently let alone the elimination of the universe.
Hephaestus
Ikaros can summon a colossal space warship called Hephaestus, which is armed with massive energy cannons that when combined into a single shot, fires a beam so powerful that it could literally shatter the Earth on impact, possibly even more than that. In the manga, Hephaestus is a giant cannon that fires a straight wide laser beam, though seemingly having the power of the warship.
And she also have all advance knowledge in the future so she is also a perfect helper for him to fully develop.
All in all, Ikaros is a Semi-Six Path Class Powerhouse, she can easily push the whole Ninja World if Xin wanted but doing that will kill all the fun so he never ask Ikaros to do something that can alter the whole world.
But this not make Ikaros stop from becoming Xin bodyguard, personal maid, at same time his bedwarmer and body pillow, so even Xin don't
use her as weapon, she is useful as she is right now.