I Traveled Through Time and Married a Princess, and My Brother Became a Slave

During a tomb robbery, Liu Yu and three others lost consciousness because the royal tomb collapsed. When Liu Yu woke up, he discovered that he was actually the emperor who had failed in nirvana and had a peerless appearance. Although Emperor Zun has lost his cultivation, he has the [System] himself, and he can also see the opponent's attack power, defense, etc. Due to the failure of Emperor Zun's Nirvana, the order of this spiritual world has changed, so that pistols and Gatling weapons frequently appeared here. Not only that, cars and airplanes also appeared here; later Liu Yu and the others actually picked up Ultraman's transformation device... And these things can only be used by Emperor...