Bringing Goods from Other Worlds, Just to Become the Strongest in Both Worlds

, **Doomsday World**: The wasteland civilization after the nuclear war retains some high technologies but the social structure has collapsed, mutated creatures dominate, and humans are lingering in fortress cities. - **Cultivation World**: There is a fairy universe with nine heavenly realms. The concentration of spiritual energy in each heavenly realm increases. The last three days are isolated by a mysterious barrier. The monks realize the boundary crossing through the broken void.