ngl i came with this with mixed feelings cause anything that has to do with forced and pain stuff just makes me feel bad thats why i absolutely love the good ending abshsj keep it up!
its said in the description! once you get the new scene (the one where instead of being tied up, he's just sitting by the tree) and just talk to him instead of immediately going to the alteration option. once the dialogue box says 'Good End Unlocked' you can choose the alteration option now and the good end plays, i think. been a while since i played lol