Yu combined the White Snake Sage's account of the past with what Ōtsutsuki Ubiji had told him in his dream, piecing together a relatively complete history.
After King Chuigen Ōtsutsuki eliminated the final obstacles—the three sage ancestors—he became the undisputed overlord of Takamagahara. The Ōtsutsuki Clan flourished after that, and twelve Divine Tree Fruits were nowhere near enough to meet the Main Family's needs. So they turned their sights on other planets, using them as seedbeds to cultivate more Divine Tree Fruits...
Then, a thousand years ago, Kaguya arrived on Earth and began the history of shinobi.
The White Snake Sage was a descendant of that White Snake Sage Ancestor and had come to Earth several thousand years ago. Her knowledge of Takamagahara ended there.
Many mysteries about the Ōtsutsuki remained unsolved...
What concerned Yu most was exactly how many Divine Tree Fruits King Chuigen Ōtsutsuki had eaten, and how many members of the Ōtsutsuki Clan had eaten them.
A single Divine Tree Fruit had produced a being like Kaguya, along with over a thousand years of Shinobi World history. Just how terrifying were the Ōtsutsuki, who possessed more than ten times that many fruits? He hardly dared imagine it...
Yu reached a conclusion. "It looks like I'll have to eat Divine Tree Fruits myself if I want to truly stand against those people. And one will be nowhere near enough!"
But the White Snake Sage said, "Only those with the blood of the Ōtsutsuki Clan's Main Family can eat the Divine Tree's Chakra Fruits. For anyone else, doing so means certain death. This is a law King Chuigen Ōtsutsuki created to keep outsiders from laying their hands on that forbidden power!"
Yu's pupils constricted. "A law... the only concept above causality. In that case, even my Causal Severance can't