Kaguya was using Susanoo's jutsu...
Mobilizing Chakra, she reversed simulated a Ninja World without Aomi, envisioning what kind of ninja Uchiha Itachi would become...
Kaguya originally thought she would see a young Aomi, carrying his clan and the Ninja World, striving openly and honestly on his path...
After all, Uchiha Itachi gave Kaguya a first impression of being a helpful, exceptionally talented classmate, with nothing else out of the ordinary.
But as Kaguya delved deeper...
She was stunned.
This dojutsu, Susanoo, supposedly has many limitations in predicting the future...
Essentially, it is based on existing information, consuming dojutsu power to speculate on a certain future.
Like Uchiha Fugaku, his power gap with Aomi is too large, and he is unaware of the hidden strong figures in the Ninja World, so even if he uses the Mangekyo Sharingan to blindness, he can only sense irrelevant scenes, then make strange assumptions...
But Kaguya is different.
With Aomi being like an encyclopedia of the Ninja World, and her power several leagues above Uchiha Itachi...
Through Susanoo, she could accurately predict Uchiha Itachi's future!
Moreover, doesn't Aomi already know what would happen in the Ninja World without him? There's no need for him to use genjutsu; Kaguya would naturally use Uchiha Fugaku's dojutsu and see a scene much like the original work of Naruto...
In the scenes observed by Kaguya.
In a Ninja World without Aomi, pressured by the conflict between the upper echelons of Konoha and his clan, Uchiha Itachi, under Uchiha Fugaku's request, became a double agent, firmly believing in the Will of Fire unrefined by Aomi's enhancements...
Kaguya, watching scene by scene as if watching an episode, became deeply engrossed, learning much from the perspective of the Uchiha Clan in this dojutsu world.
Including but not limited to the love and hate between Uchiha and Senju, the village's political struggles, and even knowing who Shimura Danzo and Sarutobi Hiruzen were...
Kaguya was becoming half a Konoha expert.
"How did Aomi walk step by step out of such a beginning?" Kaguya was quite puzzled, becoming more interested in Aomi's story and was very much looking forward to how the Uchiha Itachi she had faith in would resolve his current plight.
Sarutobi Hiruzen and Shimura Danzo's malice towards the Uchiha made Kaguya, when placing herself in the perspective of a nurturing Uchiha, feel fear.
Especially with Uchiha Fugaku's previous performance...
In other words, back then, Aomi walked this path alone, facing dual pressures from outside and within the clan, yet still arrived at today's position.
Originally...
Aomi just wanted Kaguya to see the complexity of human hearts, making her emotions more diverse and thus easier to influence in her confusion.
But in contrast, within the highly immersive experience of this dojutsu, Kaguya felt the difficulties faced by Aomi back then!
If it were her...
Kaguya thought she probably couldn't even handle reaching the point Aomi did; playing the role of Uchiha Itachi might not see her surviving past episode three, falling to a fatal plot by Shimura Danzo...
With such nervous and anxious emotions, Kaguya's perspective quickly shifted over time, scenes connecting into one another, eventually forming the scene of the night of annihilation!
The Uchiha clansmen fell one by one to the ground, blood covering the land, Uchiha Itachi personally slaying his pleading lover, Uchiha Izumi...
And his parents, Uchiha Fugaku and Uchiha Mikoto.
Along with Sasuke, kneeling on the ground, face full of bewilderment and fear, blood tears covering his small face.
The scenes flickered frame by frame.
Uchiha Itachi's voice echoed within the world formed by the dojutsu —
"Originally, the Uchiha Clan is a vile clan, slaying among friends to obtain the Mangekyo Sharingan, killing siblings for Eternal Pupil Power, and taking pride in such power! Upon being born into this clan, you're swept into this bloody fate…"
"Come now, brother, I must kill you, to liberate from this clan's fate, to free myself from my own limitations!"
And a voice without an accompanying scene, becoming gentle in tone.
"I'm always lying to you, asking for your forgiveness, constantly pushing you far away with these hands, but now that I think about it, maybe you once had the power to change mom and dad, to change the Uchiha. If only I could have faced you from the start, standing on equal footing to discuss the truth…"
"It's alright if you never forgive me, I will always love you…"
This extreme contrast.
Did not bring any warmth to Kaguya; instead, it churned out a sense of disgust from deep within!
What an arrogant and conceited fellow!
Obviously born into the Uchiha Clan, yet degrading the clan as worthless like his father, boasting about having the vision to transcend the clan's limitations, but in reality, intoxicated by twisted ideals...
Uchiha Itachi thinks the clan is beyond saving, so he must kill all the clan members!
What kind of person is he?
Even killed his own parents, lover, all his relatives, and still stands at the moral high ground criticizing them!
By what right?
And Sasuke's plight made Kaguya feel even more uncomfortable.
Uchiha Itachi's love for Sasuke fundamentally disrespects him, arrogantly pushing his beliefs onto his brother...
Whether it's hardship, thoughts, or paths.