The chubby Clara was suddenly made a victim by her boss for a werewolf named Demond. Demond, who is famous for his good looks and cruelty, has made his charm as Alpha become Alpha's most wanted since hundreds of years ago. Demond became the strongest Alpha for the Lucifer Clan, as the name implies, Alpha from the Lucifer clan and Demond's shadow army will not hesitate to kill and kill anyone who dares to disturb his calm. Until Clara appeared as a sacrifice and bravely harassed Demond. Will Demond allow Clara to continue intruding on his life? Will Clara be able to withstand Demond's pressure?