Humanity's King: Sign-In Begins with the Great Han War God

After transmigrating to an immortal cultivation world, Chu Chen becomes an idle prince in a dynasty.

He plans to live a carefree life as a prince, sharing music and happiness with the woman he loves.

But then a foreign army launches a surprise attack, and the dynasty is on the verge of falling. The former king flees with the rest of the royal family, passing the throne to Chu Chen before he leaves.

Chu Chen is left to take the blame and die with the dynasty.

Just as the enemy reaches the city gates, he awakens the God-Tier Emperor Sign-In System.

After the foreign army is driven back, the former king returns, ready to take control of the dynasty once more.

Only to discover that the dynasty has changed.