Sui-Tang: Empress Zhangsun Reveals My Identity as the Crown Prince

Yang Yu transmigrates to the Sui and Tang era, becoming the orphan Yang Guang, Emperor Yang of Sui, left behind among the common people.

In the eighth year of Daye, after Emperor Yang of Sui fails in his first expedition against Goguryeo, he returns home and posts an imperial proclamation seeking a famous general, intending to launch a second expedition!

At just that moment, Yang Yu activates a God-Level Choice System. From the start, he chooses to answer the imperial proclamation. With three strategies, he astounds the Sui Emperor, who makes an exception and appoints Yang Yu Grand Commander of the Three Armies, placing a million Sui troops under his command for the second expedition against Goguryeo!

Li Shimin: "Yang Yu is the enemy of my life. With him around, my Li Clan will never get a chance to rise!"

Yuwen Huaji: "Damn it, why does Marquis Yu know I have thoughts of rebellion!"

Changsun Wugou: "What? Marquis Yu is actually the Crown Prince of the Great Sui!"

Emperor Yang Guang of Sui: "Yu'er, I entrust the realm of the Great Sui to you."

Yang Yu: "Anyone who attacks my Great Sui, no matter how far away, will be put to death!"

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.