Most of the fandom would probably be horrified. Naruto is known for his positive values, and killing a family member is completely against that. There would likely be a lot of criticism towards the author of such a fanfic.
Shigaraki is not dead in the manga. The storyline has many twists and turns, and his character plays a significant role, so his survival adds to the ongoing drama and suspense.
The wizarding community would be shocked. Guns are not part of their world, and for Harry to use one to kill Voldemort would be unthinkable for many. There would be outrage from some traditional wizards who believe in magic as the only proper way to fight.
Well, in some extreme fanfictions, it might be due to some kind of mind - control or dark magic that forces Naruto to do such a heinous act. But this goes completely against his character in the original series.
Here are some suggestions for brother to sister novels: " Elder Brothers Above " was an ancient book that told the story of the secret love and relationship between stepsiblings. 2. " Group Pet, Fu Bao, Six and a Half " was a group pet novel. It described the story of a six-year-old mute girl who was doted on by her four brothers. These novels were all about the reactions and relationships between brothers and sisters.
A shocking murder case happened in Jiangxi. A family of three was brutally murdered. According to the report, the family's conditions were average. The parents worked in other places and the child was taken care of by the grandmother. The murderer came to the children's home on June 12th and brutally killed them. After the incident, the murderer was quickly arrested. This case attracted a lot of attention and condemnation from society. The detailed motive and background were still unclear.