My Boyfriend is the Grim Reaper

"No one will die for anyone else's sin, not even you, but for their own. And once you've completely become my queen, all you need to remember is seeing my work with your two eyes. Because they'll not survive, they will die while you watch." With her personality warped by the Grim Reaper which happen her boyfriend as well, Alexandra 'Alex' Foster had no idea how hard it is to witness the works of Thanatos 'til the important people in her life are involved. Thanatos has a gentle appearance yet has cold behaviour towards other. Only Alex know what laid beneath that beautiful mask. A man who holds the life of all the human beings, can Alex could still withstand this kind of destined job of the Grim Reaper?