Grimreaer Stories

Hi, so this is my first story sooo I hope you enjoy> it's basically a half grim reaper/half human demon named Ayumu who is a prince of the imperial family, abandoned by his family for having supernatural powers. Suddenly being summoned back to the palace by his mother, due to his twin brothers death. His parents end up putting him in his brothers arranged marriage without question. She instantly falls in love with him...what will his reaction be?? Story inspired by Love'n Life on WEBTOON!!!! But, to be honest it's very different besides character "Milis" is used in this book too!! (cover not mine)