Otsutsuki Kaguya had originally been without desires. It was only after she married a human on Earth and bore children that she developed human emotions.
And if one were to ask what Otsutsuki Kaguya feared most, then without a doubt, it was the Otsutsuki Clan.
It was also because she feared the Otsutsuki Clan that Otsutsuki Kaguya ultimately ended up being sealed by her own two sons.
In ancient times, Otsutsuki Kaguya had formed a pair with Otsutsuki Isshiki, the one she was meant to protect, and traveled to Earth to plant the God Tree.
As the "protector," Otsutsuki Kaguya had originally been meant to serve as a living sacrifice, to be devoured as nourishment for the juvenile Ten-Tails.
Simply because Kaguya held a lower status than Otsutsuki Isshiki, she was the one destined to become the sacrifice.
But just before the ritual, Kaguya ambushed and took down Otsutsuki Isshiki. She then consumed the God Tree's fruit and became the so-called ancestor of Chakra.
Having consumed the God Tree's fruit and gained immense power, Kaguya used the power of the Bloodline Snare to quell the chaotic age. She was revered as the "Goddess of the Moon" and received widespread respect and worship throughout the world.
But the God Tree's fruit was a secret treasure of the Otsutsuki Clan. Upon learning that Otsutsuki Kaguya had not only stolen the forbidden fruit but also killed Otsutsuki Isshiki, the Otsutsuki Clan naturally refused to let the matter rest. They sent Otsutsuki Momoshiki, Otsutsuki Urashiki, and Otsutsuki Kinshiki to hunt her down.
Fearing the Otsutsuki Clan's retaliation, Kaguya unleashed the Infinite Tsukuyomi to create White Zetsu in order to resist them. Yet she was stopped by her two sons and ultimately sealed away.
To be fair, looking across the entirety of Naruto, there truly