What the Hell Is the Three Kingdoms? What About the Promised Different World?

Liu Yi, a 39-year-old social worker, encountered his destined fate on his way home after staying up late and working overtime. Unfortunately, when he opened his eyes again, there was no Terra, no Teyvat, no Azeroth, but the Cao Mansion in Qiao County, Pei State, in the fifth year of Zhongping, and his father was... Liu Bei?