Thank you for your comment.
At this stage, the game does not have an ending; it is only an early version. Defeating the goblins will not lead to victory. To win, you will need to free all the girls and complete certain quests (not available yet).
As for the lesbian scenes, they will be added to the game. This way, the girls will remove the debuff after having sex with the goblins.
As for the sandbox game with naked women, after escaping from the castle, they will find themselves in a safe place, in a small location where it will be possible to do something similar.
The game has several locations planned, and once you pass through them, you will be able to complete the game. The location with the goblins is just the starting point.