Immortal Xiaoqiang: I Grew up as an Ancestor in the Three Kingdoms

This is a novel about traveling through the Three Kingdoms with a very interesting setting. The core attraction is that the protagonist Dong Chao uses the golden finger of "immortal little strong physique" to accumulate strength in the cruel chaos of the Three Kingdoms through an extremely "stupid" but efficient method - "death upgrade", and eventually becomes the boss behind the scenes.