Image imported from derpibooru
Original Description:

https://m.youtube.com/watch?v=qlQxoT4kp9s&pp=ygUZb25jZSB1cG9uIGEgdGltZSBwb2tlbW9uIA_3D3D

Once upon time, there are first beings of universe, the brother, Rainbow of Darkness and the sister, Rainbow of Light. They are opposite but they each other complementary. They create beauties worlds and life. They balance between light and darkness. When times go on, Rainbow of Light are loved and admired by others, but her brother Rainbow of Darkness got nothing, only hate and scorn by others. Rainbow of Darkness is tired this negative respons, with rage and hatred, he unleash his darkness all world. His sister Rainbow of Light guilty that she don’t prevent brothers pain, she speak to reason him, but fail. She don’t have choice but fight him. The was long and tough, brother and sister use remnats their magic and use for final blow. The fight end in draw, brother and sister don’t have anymore strength to move and they go into deep slumber. This is end tragic story of brother and sister.

Art of Rainbow of Darkness and Rainbow of Light
https://www.deviantart.com/zetikoopa/art/What-if-Rainbow-of-Darkness-is-sentien-1007133333
https://www.deviantart.com/zetikoopa/art/What-if-Rainbow-of-Light-is-sentien-1007460368