Signed to the Imperial Mausoleum for Fifty Years, I Suppressed It for Eternity

Li Feng traveled through time and became the prince of the Tang Dynasty. Because he offended the second prince of the hostile dynasty, his cultivation was revoked and his head was to be beheaded in public. He could only escape by pretending to die and was sent to the imperial mausoleum, where he would never be allowed to leave. Li Feng didn't feel too sad. With the sign-in system, he silently signed in the imperial mausoleum and became stronger. "The host signs in at the entrance of the imperial mausoleum and gets the flying immortal from the sky..." "The host signed in the main tomb of the seventh generation Emperor of the Tang Dynasty and received the Infinite Golden Elixir..." "The host signed in the tomb of the sixth emperor of the Tang Dynasty and received a demon-slaying sword..."