This is one of my recent edit. Credits written in the description. 🙂
The song is written by Mamamoo Solar, MoonByul and Hwasa, for their fans called moomoo.
They sang the full version at their first concert Moosical back in Aug 13th. Until now RBW (the company hasn’t released any official audio for it, so I decided to use one of the fancam audio (I did ask permission for it).