1. Tutorial will come at some point near the end - lots of stuff still needs to be done and writing it now would be inefficient
2. Master tweaks everything. If you want body/voice to be louder relative to everything else, turn down master and turn up body.
4. Will try to do that in an upcoming update!
5. Any climax after the first one receives a debuff. Make sure to chew the gum item to restore your virility.
6. NTR is not planned.
7. Maybe?