Hinata might be very hurt. She's a sensitive person, so Naruto yelling at her could make her feel small and sad. She might start to doubt herself and her abilities.
At first, Hinata's reaction might be one of shock and disbelief. She has probably never expected Sasuke to do such a thing. However, she is a strong - willed character deep down. So, she might start to plan her escape. She could use her knowledge of the ninja world and her own family's techniques. She might also try to find out if Sasuke has any allies or if there are other forces at work. She could try to turn the situation around and make Sasuke realize that what he is doing is wrong by appealing to his better nature or by using her own skills to outwit him.
Naruto, being the energetic and battle - loving guy he is, would likely be on the edge of his seat, eager to see who comes out on top in each death battle. He might be making bets with himself about the outcomes. Hinata, with her gentle nature, would be a bit more subdued. However, she would also be intrigued. She might be more concerned about the safety of the fighters, even though it's just a fanfiction battle. And when a fight gets really intense, she might clutch Naruto's arm without realizing it, while Naruto is too engrossed in the action to notice at first.
One of the main themes is the struggle between different social classes. Yoon Seungho, a noble, and Na - kyum, a commoner, face many difficulties because of their different statuses. Also, the theme of redemption is present. Yoon Seungho has a troubled past, and through his relationship with Na - kyum, he may find a way to redeem himself. And of course, the theme of art and creativity as Na - kyum's paintings play a crucial role in the story.
Well, 'Painter of the Night' full story is about the encounter between Yoon Seungho and Na - kyum. Yoon Seungho is a noble with his own set of problems and a rather domineering nature. Na - kyum is an artist who specializes in a certain type of painting. At first, their relationship is full of misunderstandings and power plays. But as time goes on, they start to understand each other more. There are also other characters in the story that add to the complexity, like the servants in Yoon Seungho's household and other nobles who have their own agendas regarding Yoon Seungho.
Hinata would likely go to great lengths to save Naruto. She might seek help from the most powerful medical ninjas in the village or even venture out to find a rare herb or a mysterious healer. She would be in a state of shock at first, but then her love for Naruto would drive her to take action.
The Leaf Village would be in chaos at first. Hinata is an important member of the Hyuga clan, and her kidnapping would not be taken lightly. The Hokage would immediately call for an emergency meeting. They would start by sending out search teams, likely led by some of their best shinobi like Kakashi or Shikamaru, who are known for their intelligence and combat skills.
Naruto would be extremely hurt. He loves Hinata deeply and to find out she cheated with Kiba would be a huge blow to him. He might go into a state of shock and disbelief at first.
Naruto might be shocked at first. He could stand there frozen, unable to believe what he's seeing. His face would probably show a mix of confusion and hurt.