Well, a frequent theme is the reaction of the community. The Hidden Leaf Village would be in shock. People would start to realize how important Naruto is to them. Also, there could be the theme of Naruto's unfulfilled dreams. He may have so many things he still wants to do. And the theme of legacy, as he thinks about what he'll leave behind.
One common theme is the power of friendship. Naruto's friends would try their best to support him. Another is the exploration of mortality. Naruto would have to face his own death, which is a big change from his usual fearless self. And there could be the theme of hope against all odds, as his friends search for a miracle cure.
Common themes include the struggle with identity. Naruto is known as a strong ninja, but being terminally ill makes him question who he is now. There's also the theme of sacrifice. His friends might sacrifice a lot to try and save him. And the theme of acceptance. Naruto would need to accept his situation, and his friends would need to accept that they might lose him, which is a very difficult process.
Chapter 45, "Give a Sweet Date and Then a Slap", is the clearest early answer because it turns Director Sun's situation into a concrete plot event.
Chapter 47, "This Result Definitely Has Insiders!", is the clearest early answer because it turns Has Insiders's situation into a concrete plot event. It opens with Qi is actually second???] [Did the production team make a mistake?
Chapter 310, "Sister, Eat More", is the clearest early answer because it turns Jiang Zhao Yuan's situation into a concrete plot event. It opens with Jiang Yan snorted, "Then, Grandpa, you just talk less, so Uncle Three...
Chapter 338, "Rapid Progress, Martial Arts Skills, Dual-Faceted Eastern Expansion, Dormancy Period", is the clearest early answer because the violence around Xia Hong becomes final instead of hypothetical. The setup is Fifty-four鬃, not even a month, twenty-three days, and I even spent..., but the pressure keeps building through The actual time spent cultivating should only be twenty days, and in....
Chapter 15, "The Autistic Teen Jiang Shixu", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event.
Chapter 341, "Moao's Nine Garrisons, the Inspection System and Zhenyu, Li Hu and Hong Yuru (Part 2)", is the clearest early answer because it turns Lu Dong's situation into a concrete plot event. Early on, Lord Wang is not wrong, but not entirely right either.. By the end, Bai Pingshan, being sensible and grateful, did not ask many questions..
Chapter 101, "Hello, My Name is Zhao Daniu", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 40, "The National Museum Speaks!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on [Jiang Li claims she copied this herself?
Chapter 385, "We Are Just Friends", is the clearest early answer because it turns Shang Shaobai's situation into a concrete plot event. It opens with Miss Su was somewhat surprised to learn that Jiang Li was going to...
Chapter 346, "Formidable Soldiers and Brave Generals, One Against Three, Reason Behind the Beast Tide", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The beast tide in the Arrow Bamboo Forest has been going on for so... and follows through with This is the core reason he could be appointed as Colonel of the....