Are there any anime short stories about Kirito's fever?

It might not be exactly what you need, but I would recommend a novel that is most relevant to your description."The Great Sword Hero Begins from Muye" is a light novel by the author, Gan Jiao, Ju Li, Luo You. It is a derivative doujinshi novel. The general plot of this novel is as follows: At the end of the fourth Ninja Realm War, Qimu Xinyu looked at the people who had fallen to the ground and said,"You might not know what it means to be able to cut down a Tree of God with just one sword strike. We usually only use two words to describe such people: Sword Hero!" This was the story of a person who could learn other dimensional sword techniques through the system in the Naruto World. ---------------------------- Naruto: The Strongest Swordsman was a light novel written by the author, Sword Fairy Qingkuang. The general plot of this novel was: As a swordsman who was different from a ninja, he used his sword to try out Ninja's Life for his family and himself. ---------------------------- "The Reverse Blade Sword Hero from the Destruction of the Pillar" was a light novel by the author Sakura Marks, a derivative doujinshi novel. The general plot of this novel was: The blade was a human, and the back of the blade was a ghost. The young man held the Reverse Blade Sword and ended the war between humans and ghosts that lasted for a thousand years. The first few chapters are a little toxic, you can skip them! Ghost Extinguisher-Death (currently here)-I'm not sure what happened after that. ---------------------------- Players in the Two-Dimensional World was a light novel written by Jianbei Xue. The general plot of the novel was: He logged in to Naruto and was reborn as a descendant of the Uchiha clan. He brought the system with him and traveled to various worlds. Their goal was to cause trouble! Cause trouble! Cause trouble! Newbie, don't spew. If you don't write well, forgive me. ---------------------------- "Reborn Japan: The Great Demon King of Kendo" was a light novel written by the author, Yan Jingjing. It was a fantasy novel. The general plot of this novel was: The road to Japan is long, and I tie my hair and carry a knife at night. The weapons professor was reincarnated in Japan, and the cold weapons that were previously looked down upon by everyone were redefined in this era. "Sword Saint! Ubuki Sugawara or Nobutsuna Ueizumi? Since ancient times, there have been so many people with this title. If I want to do it, I have to be the first and only one. Please call me…the Great Demon King of Sword Dao!" ---------------------------- Naruto: The Strongest Ninja Blade was a light novel by Gray Building Block. The general plot of the novel was: Death God's most powerful fire-type sword had entered the Naruto World. Blood Successor Boundary? Is there a need for assistance? Watch as my Flowing Blade burns like fire! Profound Fire Escape? Amaterasu Black Flames? It seems that you still don't understand the true meaning of burning! "Cough cough…Um, can your ninjutsu be stronger? I only slashed once!" ---------------------------- "Daily Life of Tokyo Sword Saint" was a light novel written by the author, Kikyo Bloom and Fade. It was a fantasy novel. The general plot of this novel was: Reborn in Japan, he appeared to be a high school otaku, but in fact, he secretly raised his sword to kill demons. There is a sister with white hair and blue eyes, two houses and three houses. Every day, besides practicing his swordsmanship, he would 'sweep' the area. His life was like firewood that had been burned out long ago, and he had no interest in it. This life was enough for him to retire, until one day, he was respectfully called the [Sword Saint]. ---------------------------- "A Game Life Begins with Swords" was a light novel by the author, Xue Jingfan. The general plot of this novel was: Because of a mysterious link, Chu Qiu became a talent player in the "Dimensional Fantasy World." Although it was a game, it was not a joke. Chu Qiu began to endlessly reincarnate in various anime derivative worlds to carry out missions. The special strategy of the Saber-Sword God's Domain, the Faction Duel of the Little Hero World, the Undead King's Bone King… There was also the tragedy of the war, the trial of the Seven Deadly Sins, and the fear of the demon Buu… -------------------- The intense game between the players, the endless main storyline missions, and all kinds of derivative worlds… ---------------------------- "The Sword and Sword Realm: Starting from the Aria of the Deceiver" was a light novel by the author, Buluo Pigeon. The general plot of the novel was: Taira Shinji was reborn in the real world of the Sword and Sword God Realm and found a notebook called [The World of God Setting Collection]. He used this as an opportunity to enter the "Sword Art Online" closed beta tester and enter the "SAO" that was about to become a death game. Just as Hayaba Akihiko said,", "Although this is a game, it's not a joke." Taira Shinto knew that if someone was killed, they would die, but he still put on NervGear... Link Start! ---------------------------- "Kenin Yasuo" was a light novel by the author, Futani no Futani. It was a derivative doujinshi novel. The general plot of the novel was as follows: From today onwards, he would come to Kinabe Village and name himself Yasuo Fei Village. From today onwards, he would be a spy and live on. From today onwards, he would communicate with Yasuo across dimensions and learn the Gale Sword Technique. From tomorrow onwards, benevolence, righteousness, and morality will be a luxury for me. I will kill everyone in my way. Stranger, if you want to kill me, please bring your friends. From tomorrow onwards, he would face the leaves and flowers in spring. From tomorrow onwards, death will be like the wind, always accompanying me. From tomorrow onwards, this sword's momentum became more and more intense!