Late Han: I Transmigrated into Emperor Xian and Stirred Up the World

[History, political intrigue, slow-paced, not a conventional power fantasy, no System]

The protagonist wakes up to discover that he has transmigrated into Liu Xie, Emperor Xian of Han, a puppet ruler at everyone else's mercy.

You old villain Dong Zhuo, this time I swear I'll kill you!

Uncle Liu, from now on, you're working for me. I'll protect you!

Cao Cao, I have other plans for you!

The Sun clan of Jiangdong? When you see me, Liu Xie, you'd better bow your heads and behave!

Crush the tyrants and divide the land among the people!

Pacify the Qiang and Hu tribes! Reclaim the northeast!

Take the peninsula! Claim Taiwan!

Yet just as the Han dynasty's revival seems within reach, Liu Xie discovers that a pair of eyes is always following him, watching from the shadows...