Jin Nan accidentally fell into a world surrounded by endless ocean-Mihai. There is no familiar civilized order here, only strange sea areas, dangerous alien species, hunter settlements, and "relics" made of monster flesh and bones. People hunt alien species, bear the marks of beasts, and use the power of monsters to make themselves stronger. But Jin Nan couldn't bear the mark normally. There is no so-called God-given system, and there is no ready-made path to becoming strong. He can only observe monsters' habits, study hunting methods, dismantle exotic materials, and then transform them into weapons that truly suit him. From his first survival on a desert island, to entering the Gray Harbor and creating a living relic, to sailing into the shocking black tide with Irene, he gradually embarked on an unprecedented path - not to carve the monster's power into his body, but to make the relic "alive". With the appearance of Fang Yu, Sun Hao and more strangers, Jin Nan began to discover that the real secret hidden in Mihai was far more dangerous than the alien species. Why does the Kuroshio exist? Where did those missing hunting parties go? Why do "strangers" from different places appear in this world? When the "Tide Mark" sailed into deeper waters, Jin Nan finally realized: they thought they were hunting monsters, but in this sea, the identities of hunter and prey are never fixed.
