The Glory of Kaiyuan Comes to Chang'an

Lin Yan, the prince-in-law, was reborn as the son-in-law of Emperor Xuanzong of the Tang Dynasty. He thought he would be able to live a life of soft food, but he discovered that he was actually a version of Chang'an in the chaotic Kaiyuan era where civil and military gods and demons were fighting. The remnants of the hidden prince of the former dynasty are selling demon inner elixirs in the East Market; the Jinwu Guards, a puppet organization supported by Prime Minister Li Linfu, patrol outside Anhua Gate at midnight; Princess Changle is tapping a destiny ledger woven with cipher text in the Hanguang Palace. She turns around and smiles at you who have just woken up, but uses the gentlest voice to tell the coldest reality: Tonight at midnight, a gap was torn open in the nine layers of Chang'an City's barrier by the demon world. The Jinwu Guards have blocked the streets. Only the two of us can sneak into the underworld-like underground and seize the last ray of purple energy from the dragon veins of the Tang Dynasty to save the empire. As for the feast at Li Palace, if there is still a moon when we come back, I will treat you to the most expensive wine.