Hello! Thank you for reaching out to us! This is a very good question! With the safe space option turned on, you will receive a prompt before each potentially triggering moment prior to it happening. There will be a brief overview of the possible triggers, and you will have the option to either continue the scene or go to the safe space summary which is a basic summary of what happens during that scene.
As far as sexual scenes go, there is nothing extremely graphic in our game; however, we don't want anyone to feel uncomfortable which is why we have added the moments to our safe space option. Brayson and Tamaki's routes contain the most sexual triggers. Will has one scene that is easily avoidable with the safe space option.
Thank you again for reaching out! We hope that you enjoy Glass Heart.