For Kakashi, it would be like losing a student all over again. He had trained Naruto and watched him grow. He would be proud of Naruto's selfless act but also extremely sad. The other villagers who had come to accept Naruto as a hero would be in shock. There would be mourning throughout the village. Naruto's friends would hold onto the memories they had with him. They might start initiatives in the village in Naruto's name, like training programs for young ninja to pass on his spirit. But they would always carry the pain of his sacrifice.
His friends would initially be in disbelief. Naruto was always so full of life and determination. They would probably search for a way to bring him back, especially those with strong ninjutsu abilities. Hinata would be heartbroken. She had deep feelings for Naruto. She might even try to take on some of Naruto's responsibilities in the village to keep his memory alive. His friends would also come together to support each other, but there would always be an empty space where Naruto used to be.
Sakura would be devastated. She had known Naruto for a long time and had come to care for him deeply. She might feel guilty for not being able to stop him. Sasuke would also be greatly affected. He and Naruto had a complex relationship. He might regret not being there for Naruto when he made the sacrifice. His friends from the village like Shikamaru and Choji would feel a great sense of loss. They would remember Naruto's always - positive attitude and feel that the village had lost a great light.
His friends' reactions would be intense. Kakashi, as Naruto's teacher, would feel responsible. He would gather as much information as he could about the kidnapping. His friends from Team 7 and the other ninja in the village would band together. They would know that Naruto is strong, but also that the Kyuubi is a powerful and dangerous force. They would not rest until they found Naruto. Some might be angry at the Kyuubi, while others would be more focused on just getting Naruto back safely. They might also try to find ways to communicate with the Kyuubi, if possible, to negotiate for Naruto's release.
She would be devastated. Hinata has always loved Naruto deeply. His sacrifice would shatter her world. She might initially go into a state of shock and denial. But eventually, she would become stronger, using her love for Naruto as a driving force to do good in the shinobi world.
His friends like Shikamaru would be deeply affected. Shikamaru, who had always respected Naruto's tenacity, would be at a loss. He might think about all the times Naruto pushed forward despite the odds and feel guilty for not being able to prevent his death. Hinata would be inconsolable. She had deep feelings for Naruto, and his sacrifice would shatter her world. The other ninja from different villages that Naruto had befriended during his journey, like Gaara, would also be in mourning. They would see Naruto's sacrifice as a noble act that inspired them to be better protectors of their own villages and to work towards a more unified ninja world.
The characters' reactions would be complex. For instance, Iruka Sensei, who was like a father figure to Naruto, would be inconsolable. He has watched Naruto grow from a troublemaker to a hero, and this sacrifice would be too much to bear. Shikamaru, being Naruto's friend, would feel a mix of admiration and sadness. Admiration for Naruto's selfless act but sad that he's gone. The kids in the village who looked up to Naruto would be inspired in a way. They would want to be like Naruto and protect the things they love, even if it means sacrificing themselves.
Hinata would be completely devastated. She has always been deeply in love with Naruto, and his sacrifice would leave her heartbroken. She would still be strong for Boruto, though, and try to support him in any way she could.
The village would be in shock. People would be in disbelief that Naruto, who has always been a symbol of hope, is gone. There would be immediate grief, with many villagers crying in the streets. Some might even blame the village leaders for not being able to prevent his sacrifice.
Sakura might be initially shocked and a bit jealous at how cute Naruto - as - a - girl is. Sasuke would probably be confused at first but then act indifferent. Kakashi would be his usual calm self, but might crack a few jokes about Naruto's new look.
Well, Shikamaru would be one of the characters who would take Naruto's sacrifice very hard. He had always respected Naruto's determination. His reaction might be to become more serious about his duties in the village, feeling that he needs to step up in Naruto's absence. Hinata would be heartbroken too. She had deep feelings for Naruto. She might struggle to come to terms with his loss but also find strength in his selfless act. And all of the Konoha 11 would be united in their grief, vowing to protect the village and each other more fiercely in Naruto's memory.
His other friends like Shikamaru would be in shock. Shikamaru, who is usually calm and collected, would struggle to come to terms with Naruto's death. They would all have to deal with the loss of the village's hero and a great friend, and it would likely change the dynamics of the entire group.
Sasuke would be completely shattered. His world would be turned upside down. He had always seen Naruto as a rival, but also as someone important. Naruto sacrificing himself for him would make Sasuke reevaluate his entire life. He would feel an overwhelming sense of guilt and would likely isolate himself from others. However, over time, he would start to use Naruto's sacrifice as a motivation to become a better person and to protect the things Naruto held dear. He would start to follow in Naruto's footsteps in terms of values like friendship and loyalty, and would try to make amends for his past mistakes.