I'm not going to enjoy/start the game until I'm sure:
1) If it's incredibly easy to avoid NTR, bad endings, BDSM, rape, gay and lesbian.
2) Whether there is a harem ending with all the LIs or if we need to choose a single LI at some point in the game.
I'm not asking you to spoil the game, mod it, or anything similar, I just want a clear and direct answer to these questions.