His friends were probably very worried. Sakura, being a medical - ninja - in - training, might immediately start looking for symptoms and trying to diagnose him. Shikamaru could be thinking of strategies to keep Naruto safe while he's sick. And Naruto's other friends would likely offer their support in different ways, like bringing him food or just staying by his side to keep him company.
In fanfiction, Naruto's friends would react with great concern. Sasuke, despite his usual aloofness, might secretly be worried and keep an eye on Naruto. Choji could bring some of his favorite snacks to cheer Naruto up. Ino might use her mind - transfer jutsu to see if she can find out what's wrong with Naruto on a mental level. They all understand how important Naruto is to their team and village, so they would do whatever they can to help him get better.
When Naruto got sick after the sealing in fanfiction, his friends' reactions were a mix of worry and determination. Kiba with Akamaru by his side would visit Naruto often, and Akamaru might even try to sense if there's something abnormal about Naruto's condition. Hinata would be extremely worried but also a bit shy in showing her full concern. However, she would surely bring some herbal teas or warm blankets. His friends would also form a sort of protective circle around Naruto, not allowing any potential threats to get near him while he's vulnerable.
In some fanfictions, Naruto might face weakened chakra control after getting sick post - sealing. This could lead to him struggling with basic jutsu at first. His friends might have to step in to protect him more often until he recovers fully.
Sakura would probably be the first to jump into action. As a medical ninja, she would immediately start examining Naruto to figure out what's wrong. She might be worried but also determined to find a cure.
His other friends like Shikamaru would think of the most practical solutions. He might calculate the risks of continuing the mission with a sick Naruto and come up with a plan. Maybe he'd suggest splitting the group, with some staying to take care of Naruto and others proceeding with the mission - related tasks that can't be postponed.
Naruto would likely be extremely confused at first. He has always idolized his father, and to have Minato do such a thing would shatter his perception. He'd probably try to talk to Minato, ask him why he's doing it.
In most 'Naruto gets sick' fanfics, his friends are very concerned. For example, Sakura will immediately start using her medical skills to diagnose and treat him. Sasuke, although he may not show it outwardly as much, will stay by Naruto's side and keep a watchful eye. Shikamaru might come up with plans to make Naruto more comfortable during his illness. And Hinata, she would be really worried and would probably bring Naruto some home - cooked food to help him regain his strength.
Sakura, being a medic - ninja, would likely be very concerned and immediately start trying to diagnose and treat Naruto. She might be constantly by his side, using her medical skills to ease his symptoms.
Sakura might be a bit surprised at first. But she would probably be happy for Naruto as long as he is happy. She might also be curious about the elf and want to learn more about her. Sasuke would likely be more reserved in his reaction. He might not show much emotion on the surface but deep down he would be glad that Naruto has found someone. Kakashi would probably give Naruto some sage advice about making a relationship work, especially since it's with someone from a different species.
His friends' reactions would be diverse. Naruto's more hot - headed friends like Kiba might be excited about the new firepower the modern army brings. They might want to jump right into using the guns and other weapons. But Naruto's calmer friends like Neji (if he were still alive in the fanfiction) would be more cautious. They would worry about the long - term effects on the ninja world, such as the potential for mass destruction and how it would change the balance of power. And Ino might be interested in how the modern army's communication systems could be used to improve their own ninja intelligence networks.
His friends would likely be shocked and deeply concerned. Sasuke might put aside their differences and be by Naruto's side, offering his support.
Sasuke might be initially cautious. He would observe Cell carefully to assess his threat level. He could offer his Sharingan - enhanced perception to help Naruto in the fight. Sakura, she would be worried about Naruto but also ready to jump in and heal any wounds. Shikamaru might be thinking of strategies in the background, trying to come up with a way to outwit Cell using his intelligence.