Demon Slayer: in My Rebirth, I Am Enichi's Younger Brother?

(Written from the Warring States Period to the Demon Slayer timeline, which is biased toward the original plot) The king of scrolls, Lin Ye, worked overtime to the point of breaking out, and on his way home, he got "lucky" - literally! A dump truck sent him directly across time, and he was given a gift package from the Warring States Period! Good news: His reincarnation skills are top-notch, and he has become the third young master in the country. Bad news: His eldest brother is called Tsukuni Iwakatsu, and his future will be a dark one; his second brother is called Tsukuni Enichi, his combat power is at the ceiling now, and his future will end in tragedy. Sakuye felt bad looking at this hellish family script. Save your brother? Reversing fate? This job is harder than working overtime! Seeing Brother Yan Sheng repeatedly jumping on the edge of the abyss of jealousy, he gritted his teeth and said, OK, if the conventional route can't save him, then he will take the unconventional route! Iwakatsu turns into a ghost, and so does he! When the long river of history rolls forward for six hundred years, the breath of the sun and the breath of the moon will eventually collide again... Sakuya, who had been lurking in the shadow of time, finally stood in front of the stage. He faced his two brothers and the entire Demon Slayer World, revealing his fangs that had been hidden for six hundred years: "Brother Yan Sheng, brother Yuan Yi." "It's time for a different ending to this tragedy starring our brothers." "I, Jiguo Shuoye, am no longer a human being, but I will never be a slave to fate!"