It was the night before the final arena battles of the Grand Martial Arts Tournament.
After dinner, Naruto and Hitomi went for a walk together.
Naruto said, "Hitomi, honestly, I was really surprised you made it through."
Hitomi said, "With those rules, I definitely couldn't have done it alone..."
Naruto glanced at him. "Oh? Have you learned how reliable your comrades can be?"
Hitomi said nothing, perhaps because the word "comrades" made him feel awkward.
Looking away, Naruto asked a pointed question. "If you end up facing a comrade in tomorrow's arena battles, and... your opponent desperately wants to win, what will you do?"
"My dad doesn't know I'm his and Mom's daughter. That's why I have to become an Earth Shinobi, so he'll see me and Mom in a new light, and know he has a mom he can be proud of!"
Sarada's heartfelt confession echoed in Hitomi's mind.
"I..." Hitomi was at a loss for words.
Naruto asked, "There were Dream Cards in the airdrop crates, right?"
Hitomi nodded. "Yeah, but I'd already mastered the technique on that card, so I gave it to my com... the girl on my team."
Dream Cards used Genjutsu to record a practitioner's subjective experience of learning a technique, preserving the process and insights on a card for others to learn from.
Take the Rasengan, for example. Although Naruto had mastered it to perfection, he couldn't help create a card for it, because he already knew the technique.
To create a Dream Card for the Rasengan, a beginner who had never encountered it had to learn it from scratch, while a Ninja skilled in the relevant Genjutsu stayed beside them to record the entire process.
Only when both conditions were met could a card containing the experience of learning that technique be