Naruto: So I, Uchiha Tsuki, Am the One Who Planned the Whole Uchiha Massacre

Transmigrating into the Uchiha clan, starting on the eve of the massacre. While others think about how to stop the tragedy, Uchiha Tsuki schemes how to use this tragedy to climb to the very top! Possessing the "Demon Blade System" capable of sealing tailed beasts, she realizes that to grow stronger, she must break the existing peace. Thus, she single-handedly orchestrates the early arrival of the "Nine-Tails' Rampage," tramples Uzumaki Naruto underfoot, and drains the power of the Nine-Tails. "Uchiha Itachi? The Akatsuki? Mere stepping stones for me." Faced with her father's questioning, she watches coldly. Faced with her brother's betrayal, she smiles like a flower. While Uchiha Itachi believes he is acting "for the greater good by eliminating his clan," he has no idea that he is nothing but a clown being played in the palm of her hand. "Brother, thank you for helping me clean up these useless clansmen." "Masked man, thank you for the cheat you delivered." In this ninja world of hypocritical peace, Uchiha Tsuki tears away the last veil of pretense. She will show this world what true— Absolute power really means!