Seal Deed

Within the three seal walls, people with marks are called "bloods" - they are born to be discriminated against, expelled, and managed as dangerous goods. No one told them why, only telling them: There are biters outside the wall, and the biters only eat people with marks, so you are a disaster. Seventeen-year-old Han Jin lost his entire family when a Devourer broke through the wall. But he noticed one thing: when the Devourers retreated, they were in an orderly manner. Not like a wild beast. Like executing an order. With this question in mind, he joined the investigation team outside the wall, and stepped out of the wall with Shen Ce, who calmly concealed his secrets, and Crashuang, who was semi-alienated but calm as usual. The deeper they go, the more they discover the truth - the wall was never meant to protect the Marked Ones, the Devourers were never natural enemies, and the word "Blood" was carefully designed by someone. Is the mark a curse, or a key? Depends on which door you choose to open.