Board Thread:General Discussion/@comment-29197815-20160915085539

I mean two things on this question, one is considering if he was in the underground the time Chara and Asriel were alive and then it all take us to think about how could be their relationship if they ever meet? The other is, when you fight Sans, he clearly put highlights on " all i know is... seeing what comes next... i can't afford not to care anymore. [Attack #12] ". By that, did he knows you'll erase this world? in any case how, knowing you can reset either way (you erase it or not) he can be that held down about you completing the genocide run?. Its naive to think that he know it because he just think it, that let me think if he really cares about anything on that world, like, he could just confront you when he find out you killed his brother, toriel, undyne or any monster he has affection, but instead, he just try to stop us when we are at 1 room to complete the genocide and lose forever our posibility to have a Happy ending 