I know why Chara climbed the mountain. It wasn't a very happy reason. Frisk. I'll be honest with you. Chara hated humanity. Why they did, they never talked about it. But they felt very strongly about that.

I don't wanna break all their hearts all over again. It's better if they never see me again.

Frisk, Please leave me alone. I can't come back. I just can't, OK?