When in stalling the Lumen S28, or similar AIO, into the Mood it is best to follow this guide.
1.) Make sure the tubes on the CPU block are facing up toward the RAM slots.
2.) Make sure that the tubes on the radiator are facing down on the fan/radiator bracket with the hooks at the bottom.
The radiator will not fit in the Mood with the tubes at the top of the case.
Video showing installation
https://youtube.com/shorts/1Hvrk_ukt38?si=bxrdclhNCZf5NWRV
**Please note that in the video none of the front I/O, power, or fan cables are plugged in to simplify the video. So difficulty of installation may vary depending on how you have all your cables managed and plugged in.**