One potential consequence could be that his body experiences a great deal of strain. Breaking the sound barrier means extreme speed, and this could put a huge amount of stress on his muscles, bones, and internal organs. He might need time to recover and adjust to the new physical limits he has reached.
In the 'naruto breaks the sound barrier fanfic', Naruto may break the sound barrier by combining multiple jutsus in an innovative way. He could start with a Shadow Clone Jutsu to create multiple clones that work together. These clones could then perform a series of Wind - Style jutsus in a coordinated manner to create a sort of 'chakra wind tunnel' around him. This wind tunnel would accelerate him forward, and with his own natural speed and the added boost from his chakra, he manages to break through the sound barrier. Additionally, his strong will and determination to protect his friends and village might fuel this extraordinary achievement.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
" Light Barrier " was a popular science fiction novel, not a romance novel. It was created by the Wrestling Panda and published on Qidian Chinese website. The story was about a man in the darkness, who had a desire for light and dispelled the darkness by igniting a fire. This novel was based on science fiction and military subjects, not romance.