Chaos in the Sui and Tang Dynasties: I Made Countless Transmigrators Cry

Yang Xuan wakes up to find that he has transmigrated into the son of Yang Guang.

In a daze, he gets bound to the System for Saving the Great Sui. The very first mission is to rescue Yang Guang, who is being forced to abdicate by Yuwen Huaji.

With a trial card granting him the power of the Overlord, Yang Xuan kills Yuwen Chengdu, the second mightiest warrior of the Sui and Tang era, with a single thrust, successfully saving Yang Guang from disaster.

When Yang Xuan learns that Yang Guang is still alive and that history has been thrown into chaos, causing countless transmigrators to descend upon the Sui and Tang era, he is utterly distraught.

When he learns that all those transmigrators have one goal, to bring down the Great Sui he must protect, his face turns ferocious.

When the generous System rewards arrive, Yang Xuan only wants to beat the System to a pulp.

Why do other people summon heroes like Xiang Yu and Liu Bang, or even an ice dragon?

Why do I get Li Shishi, Gao Qiu, Doraemon, and Bald Qiang?

I'm a prince of the Great Sui, and the biggest BOSS among all these transmigrators!

And you expect me to defend the realm with a bunch of schemers while surrounded by heroes on all sides?

Maybe being a schemer has its advantages too, doesn't it?!

Now, the "Protect the Great Sui" instance officially begins. Difficulty: "Nightmare"!