The Covenant of Heaven

To fulfill this contract... I must do these things... The contract between the devil and the angel... The contract between heaven and hell... I need the "key" to complete it... On earth... we must create the "key"... Note: All 7 BTS members will appear, with Yoongi as the main character. Oh, thank goodness (╥﹏╥) Eighth work. I wonder if this counts as a dark history... Ahhhhh, this is a dark history!! @_@