Exploration: the Three Kingdoms Murder with Human Lives as Gambling

[No system + no heroine + no brainlessness + slow heat] There is a one-day trip to the world of immortality that cannot survive three episodes, there is the Three Kingdoms Killing where human life is the bet, there are weird stories about weird rules, and there is a bloody killing arena... What is hidden in this peaceful world? Be careful, when you see this, you are already involved and cannot be alone. (PS: This book is slow to develop. The protagonist Li Ge is not invincible. He is a little person who grows up step by step. The style of this book is not weird.)