Naruto: The dungeon I developed went viral throughout the entire ninja world.

Transmigrating into the world of Naruto, Roy obtains the [God-Level Dungeon System]. Clearing dungeons grants rewards and can even alter one's destiny. It can present real past events and predict future occurrences. He opens a small shop in Konoha called the Illusionary Dojo. Three days before the night of the Clan Massacre: Seven-year-old Sasuke enters the shop, pays for the Great Fireball Technique, and unlocks the "Night of the Clan Massacre: The Truth" dungeon. While Sasuke fights desperately against Root to save his brother, the system triggers a village-wide live broadcast. The sky descends, revealing the scene. Danzo's words, "Not even infants will be spared," echo throughout Konoha. The Third Hokage's words, "Do it cleanly," shatter the village's faith. That night, Danzo is executed, the Third Hokage steps down, and the Uchiha rebel. From then on, Roy's dungeons completely corrupt the ninja world. In "The Death of White Fang," Kakashi, witnessing his father driven to suicide by public opinion, becomes utterly corrupted. During the Fourth Shinobi World War, Madara, witnessing Black Zetsu's heart-piercing attack, fell into deep thought... Years later, the Otsutsuki clan descended, trembling as they looked at the Allied Shinobi Forces, each armed with a set of Six Paths Armor: "Who exactly is the alien?!"