I, the Great Qin Protagonist, Have Signed in Secretly for Twenty Years

Da Qin was defeated. The third prince Zhao Guang, who was only six years old, was sent to the Imperial Capital of Zhao as a hostage. On the way to Da Zhao, he got a sign-in system, and he could get generous rewards as long as he signed in. For twenty years in the Imperial Capital of Zhao, he secretly developed his own strength and extended his tentacles to every corner of the continent. Twenty years later, when Qin's cavalry heavily surrounded the capital of the Zhao Empire, Zhao Guang, who was used as a hostage, was pressed onto the city wall. In twenty years, Zhao Guang had long been invincible in the world. With one sword, he killed the Emperor of Zhao. Climb up and call out, and responders will gather. Zhao Guang returned to Da Qin with an invincible appearance. Ascend to the throne of Qin, rule the world, and be the overlord for eternity. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.