It's Gu

Ancient suspense + two male protagonists + stand-in + traditional martial arts Blood Gu, a thousand-year-old sacred object, a male and female pair, if divided, they can devour people's minds, but if combined, they can be invincible in the world. He Liuyun was planted with a blood poison when he was fifteen years old. Although his skills greatly increased and his injuries could heal on their own, he still drank blood every night and ate people's hearts. When he was sixteen years old, he killed Ye Wei by mistake. From then on, he killed himself with Zi Ming. He no longer killed anyone indiscriminately and no longer loved anyone. Until he was twenty-seven years old, in order to explore the secrets of Miao Ling, he went to Miao Mountain in person, and met Shen Du on Miao Mountain - Shen Du who looked almost exactly like Ye Cheng...