Eighteen Years of Sign-In: The System Activates and the Eighth Prince Becomes Invincible

Zhou Tian transmigrated to the Tianxuan Continent, in the Tianyun Empire. He became the empire's eighth prince. He was born amid auspicious signs and hailed as a peerless genius. But when he was born, the System told him it could not be activated until he turned eighteen, and that he could not practice any cultivation techniques before then. As a result, Zhou Tian became a notorious good-for-nothing.