Tang Dynasty: Unparalleled Prince, Signed in the Palace for Eighteen Years

"Prince Li Yu will immediately go to Hexi to boost the morale of the army, calm down the chaos, and guard the country." When the Turks attacked, a decree directly sent Li Yu to the land west of Hexi, hiding murderous intentions. Unexpectedly, Li Yu had already awakened to the sign-in system and signed in silently in the palace for eighteen years. Li Yu: "I don't want any skills or martial arts. Give me your strength!" System: "... As you wish!" "It is detected that the host has left the palace, sign in before the battle, and be rewarded with the God of Killing Domain!" On the battlefield, everyone was dumbfounded as they watched Li Yu fighting the army alone, becoming more and more brave as he fought! Empress Wu wants to proclaim herself emperor? Jiedushi rebelled? The armies of the Tubo kingdoms are pressing down on the territory? Li Yu: "If you want to mess up my Li Tang kingdom, have you ever asked me if I have a 70cm long sword?" Is there a conspiracy behind the Roman Empire and wants to conquer the East? The Arab Empire Alliance attacks my client country? Li Yu: "I haven't done anything yet, but you guys... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.