what options do i choose to get the last scene with luna? dunno how to get rid of "low lust"
Hey, sorry for the delay in responding. I'm not sure if you've already completed Luna's final option, but you'll need to start over, wait until your corruption level reaches 10/12, then select every naughty option available to Luna.
Demo 15 (on Patreon) already offers the option to replay the scene and reuses your save from the other demos, so you don't need to erase it.
Hope that helps!