-- rant so long it didn't fit in one comment. Here's the last laragraph. --
The overall quest can be changed too. Just make it so that the MC needs to reach an ending, not necessarily the harem ending. Then, since the MC won’t be worried about dying (since the task is hella easy), there won't be a need for the MC to lie and force events. The MC can also totally wind up pounding all six girls despite only needing one route cleared. It's an eroge world, it doesn't take lies and plots for these girls to wind up ho***. It doesn't take secret relationships to say that six girls wanted friends with benefits.