Rusty Bone Seed Sword

Rust comes and everything decays. Only the swordkeepers with the blood of the garrison flag can use their body as a scabbard to hold the broken sword and delay the rust. An apprentice in the coffin shop dug up fragments of the sword on the day of tree sacrifice. From then on, the rusty corpse knocked on the door at night, and the rusty spirit peered into the window lattice. He must find the relics of the Qi garrison flag before he is completely rusted and uncover the truth about the rust tide three hundred years ago. But the truth often corrodes the bones more than rust.