Tomb Raiding: Infinite Fusion, Growing Stronger With Every Kill

I transmigrate as Hu Bayi's cousin, with an unlimited fusion System of my own. Golden silkworm Gu from the start, making me immune to every poison in the Insect Valley! A corpse-driving spell? I'll feed it to my Gu. Huo's immortal worm? Perfect, that opens up a second fusion slot! The Iron Triangle thought they'd brought along a burden, but in the royal tomb I cleared the whole place by myself. Going underground? No, I'm here to farm experience!