actually I wanna do this a long time ago. Maybe It will be a part of My whole AU's story. This AU is called"KB!Dreamswap"(KBSAU),The Multiverse is called Eternal Night Verse(ENV) This is my au(mostly characteristic are original,This AU is just based on Dreamswap) I'm not good at English actually ... In my AU,Nightmare's past name is "Robin Rise"and"MidNight".He is elder than Dream about 700 years.(He died as Robin Rise the human when he was 19,Then he was reborned by the spirit god Nim(Spirit tree),He lives under spirit trees about 1000 years,he helped a lot of people.but when he become Nightmare the negative guardian,everyone bullied him,but he don't want Dream worried about him so he still don't tell his brother,that makes his brother misunderstanding at him.) Actually,Dream is not Nightmare's brother in my au,althrought they called each other brother.(It is just like we called the best friend"bro". If there are other things you don't know,you can ask me :D