Datang: Signing in at the Frontier, My Father Begged Me to Ascend the Throne

[Datang + Sign-in + Invincibility + Hegemony] I, the most useless prince of the Tang Dynasty, was framed by the prince at the beginning, and was exiled to the border by my father to die! But they never expected that I would activate the god-level sign-in system with my backhand and summon one hundred thousand Snow Dragon Riders! An invasion of 200,000 Turkic troops? I captured Khan alive in front of the battle, and overnight, I became the king beyond the wall that made the entire grassland tremble! Until that day, I came to Chang'an with an army of millions of gods and demons. My father looked at the invincible army behind me and was completely horrified. I took out the imperial seal and said calmly: "Father, you can't sit firmly in this country, why don't you let me sit down?"