The transmigrator Asura, in the body of a three- or four-year-old, bears the excruciating pain of his demonic arm and the torment of being entangled with a demon god. Shimotsuki Kozaburo entrusts him to his younger brother, Kangchuan.
Before departing, Kozaburo gives him an unusual, transformed cursed blade. Asura names it “Heaven's Cry” and vows to cut down every injustice.
Knowing the fate of the Pirate King world and carrying the complete legacy of all four branches of the Ghostblade swordsmen, he shuts himself away to train in the daimyo's residence in Wano Country. He lies low behind his blind eyes and tempers his blade through pain, suppressing the demon god Kazan within him while pursuing ever-greater power. All so he can break free of the shackles of fate and write the legend of the Ghostblade swordsman Asura Luo across these seas.
It's very good, but the details need some polishing.
It's definitely worth watching 💕, please update it soon.