Male protagonist: Liao Lijin, 22 years old, an unemployed vagrant who graduated from a second degree in modern times. Because he couldn't stand being unknown and transparent all his life, he suffered a heart attack and died of anger. He traveled through the late Sui Dynasty. Awakening [Unparalleled System of the Founding of the Tang Dynasty], his character is decisive and decisive, he will not be merciful in eradicating enemies, and he has the attribute of making fun of his own people. He has a unique brain circuit and is proficient in the entire history of the late Sui and early Tang Dynasties. He relies on foresight and ruthless means to help Li Shimin conquer the world along the way.
- System: [The Unparalleled System of the Founding of the Tang Dynasty], the core logic is to complete historical key node tasks, kill enemy targets to obtain killing points, and exchange skills, materials, tactics, and black technology improvement plans. Occasionally, they will jump out to complain about the host's sand sculpture operation. They do not steal the show and are purely auxiliary tools.
- Core supporting characters: Li Shimin (Li Erfeng, the prince of Taiyuan in the early period, the King of Qin and Emperor Taizong of the Tang Dynasty in the later period, was shocked by Lin Mo's saucy tricks, and eventually became a fateful brother from curiosity to complete trust), Cheng Yaojin, Qin Qiong, Yuchi Gong (the male protagonist's sand sculpture drinking buddy + right-hand man on the battlefield)
- Male protagonist: Liao Lijin, 22 years old, an unemployed vagrant who graduated from a second degree in modern times. Because he couldn't stand being unknown and transparent all his life, he suffered a heart attack and was angry to death. He traveled through the late Sui Dynasty. Awakened [The Unparalleled System of the Founding of the Tang Dynasty], with a decisive character, and no mercy in eradicating the enemy. He has the attribute of making fun of his own people, has a unique brain circuit, and is proficient in the entire history of the late Sui Dynasty and early Tang Dynasty.
