So , in Misen and Minos first reincarnation as Kieran ( Misen ) and Miko ( Mino ) , Kieran was Miko's guardian angel ( reasons unknown ) , but somewhere along the lines , Miko died

And when whoever a guardian angel is protected dies , the guardian angel chokes on and dies by whatever they mostly remember of the person . And Kieran remembered mainly about Miko about the roses Miko gave her when they first met , so Kieran choked on roses and died .

So , in the second reincarnation , Arrow was bitter about that , and made it her life goal to ruin Milos life 🤓 ( which is another reason why Arrow made Kolias , Milos love , fall from heaven 🤓 )

Also , that's Arrows true form , aka how Milo and other burnt Angels and demons , see Arrow compared to how everyone sees her as a small angelic little shit 🎀

Also , her true form is meant to have four arms , I js forgot them 😓