Chapter 257 of Jujutsu Kaisen has shocked fans with its mind-blowing revelations. It unveils Sukuna’s secret twin brother, reincarnated as Jin Itadori, and reveals that Kenjaku’s possession of Kaori Itadori was to create a child with both his and Sukuna’s DNA, ultimately leading to Yuji’s birth. Moreover, the chapter showcases Yuji’s exceptional mastery over Black Flash, a formidable technique that he executes eight times consecutively, solidifying his status as the current master of this rare attack.