One possible reason could be a powerful enemy's fire - based jutsu. For example, if Naruto is facing a skilled fire - style user like Sasuke during a battle gone wrong, Sasuke's powerful fire techniques might accidentally burn Naruto.
A rogue ninja from a rival village could be responsible. They might see Naruto as a threat and use their fire - based attacks to harm him. For instance, a ninja from the Hidden Mist Village who has a grudge against Konoha and targets Naruto specifically.
Well, it could be a new inmate who sees Michael as a threat and decides to undermine him. This inmate might spread rumors or false information to get Michael in trouble.
Another plot could be that Michael gets burned and this event becomes a turning point in his life. He might discover new strengths within himself. For example, he could start a support group for burn victims, sharing his own experiences and helping others to overcome their difficulties. In this way, the fanfiction could show his growth and transformation from a victim to a source of inspiration.
One possible story could be about Michael Scofield facing unexpected betrayals that lead to him 'getting burned'. Maybe a supposed ally turns on him in the midst of his elaborate prison break plans, causing him to have to re - evaluate his every move.
His best friend could be a key character. This friend could be the one who was with him when he got burned and feels guilty about it. So, the friend tries to make it up to Michael by being extra helpful during his recovery, bringing him things he needs and just being there for him to talk to.
Well, she could potentially suffer physical harm or have her life changed dramatically. Maybe she realizes the danger of playing with fire and becomes more cautious in the future.
He might become more withdrawn. The burned face could make him self - conscious, so he doesn't interact as freely as before. For example, he might avoid public gatherings or eye contact with people.
One possible scenario in this fanfiction could be that Naruto's sister constantly interferes in his ninja training. She might think the training is too dangerous for him and tries to stop him from taking on challenging missions. For example, when Naruto is about to go on a mission to the Land of Waves, his sister could try to convince the Hokage not to send him, believing that he's not ready yet. This would add a whole new layer of conflict to the story, not just between Naruto and his sister, but also with the village's expectations of Naruto as a ninja.
A fanfiction about Naruto getting the Kusanagi could also involve a time - travel aspect. Naruto could be sent back in time and end up in the era when the Kusanagi was first created. There, he meets the original wielder and learns from them. He then brings the knowledge and the sword back to his own time, using it to defeat a great evil that was previously unbeatable.