Surviving in Harry Potter fanfiction would require a lot of knowledge and adaptability. You should study the magical lore, know about the different magical creatures and how to deal with them. For example, if you encounter a Dementor, you need to know the Patronus charm. Also, be careful with the political situation in the wizarding world. Don't get on the wrong side of powerful wizards or witches.
Characters could survive a cave accident in a Harry Potter fanfiction by relying on their knowledge of magical plants. Maybe there are some Devil's Snare plants in the cave. If they know how to handle them, they can use the plants to their advantage. For example, they can make a rope out of the Devil's Snare to climb out of a deep hole. Also, they can use their wits and the skills they've learned in their classes. If it's a cave filled with dark magic, they can use their Occlumency skills to protect their minds and then find a way to counter the dark magic using spells like Lumos to find hidden passages or exits.
Surviving in the Harry Potter fanfic universe would require a good understanding of the magical laws. Don't break the Statute of Secrecy. And be careful when dealing with dark magic. Avoid places known for dark magic activity. Another important thing is to have a reliable wand. A good wand can enhance your magic and protect you in dangerous situations.
😋I recommend the following two novels to you, I hope you will like them:
Doomsday Management Game was about ten Earthlings who were chosen to be the managers of the apocalypse. The female protagonist was one of them. She faced the apocalypse with her family. The transition period was relatively gentle, but the cruelty of the apocalypse game would gradually appear in the middle and later stages!
"The Female Lead Just Wants to Live in Peace" was about a little cannon fodder who was forced to transmigrate into a post-apocalyptic novel. She just wanted to live well. Revenge had nothing to do with her. The female protagonist had a system, but the system often dropped the ball. The plot was tight and there was no lack of humor. I hope you like my recommendation, Mwah ~😗
Harry Potter could survive in the Forbidden Forest by making allies. He could befriend the centaurs or the friendly spirits in the forest. They could help him find food, water, and warn him of any approaching danger.
Harry Potter could survive in the dungeon without his glasses by relying on his instincts. He has been in many dangerous situations before and has developed a good sense of danger. He could listen intently for any sounds that might indicate danger or a way out. Additionally, he could try to communicate with magical creatures in the dungeon. Some might be friendly and help him. And if there are any magical objects in the dungeon, he could potentially use them to his advantage. For instance, if there is a magical stone that enhances perception, he could use it to'see' better without his glasses.
They could use their strong sisterly bond. Just like in their own world, they could rely on each other. Maybe they'd combine their powers in new ways to deal with the threats in the Harry Potter world. For example, using Piper's freezing power along with Phoebe's premonition to anticipate and stop attacks.
Well, it could lead to a very different story. Harry's childhood and upbringing would be completely changed, and the dynamics of the wizarding world might shift.
Hidekazu suffered the attacks of the Dark Palm and the Demon God Technique in the battle, but he still survived. However, the search results did not provide specific details about how he survived. Therefore, according to the information provided, I don't know how Shin survived.