How to Survive the Night of the Clan Massacre

[Novel blurb] Eight-year-old Uchiha Kaede falls into a death loop on her birthday. At the time, she is sitting at the dinner table with a high fever while her parents celebrate her birthday. She hasn't even blown out the candles when a gust of wind from nowhere snuffs out the flames. In the darkness, a pair of red Sharingan appear at the doorway. Then her parents are killed with a single slash. She tries to run, but the moment she turns around, she collapses to the ground. In her fading consciousness, she hears the culprit crouch beside her and say, “I'm sorry, Kaede.” She recognizes the voice. It's the clan leader's eldest son, Uchiha Itachi! Why? Why did he kill her whole family? When she wakes up again, she's back a week before her birthday. Thinking it was a dream, she is killed again, completely unprepared! After being killed and waking up again and again, Uchiha Kaede finally realizes that unless she can stop Uchiha Itachi, she'll keep repeating the loop! She decides to stop Uchiha Itachi at any cost! [Reader's guide] 1. The heroine grows over time. 2. Her love interest is Sasuke. 3. The timeline differs from the original. For instance, Uchiha Shisui dies two years before the clan massacre in the original, but in this story it'll be about two weeks. 4. The heroine's Sharingan and the reason for the loop are explained in the story, so please be patient~ (Note: The heroine awakened her Sharingan right at the beginning, but she doesn't know it. After that, she enters the loop, where her Sharingan is restricted and effectively unusable. Will she break through the restriction later? Stay tuned~) 5. There are lots of original details (special note: time doesn't pass consistently inside the loop. Human actions can lengthen or shorten the timeline). 6. There is a small amount of Madara and Hashirama material during the Fourth Shinobi World War arc. Enter with caution if that bothers you. 7. Mitokado Homura's surname in this story is Mitokado, and his given name is Homura. A sweet reader pointed it out after the story was finished, and I can't be bothered to go back and change it, so I'm noting it here. Theme: Life is precious.