Kim Jongin is a goblin and protector of souls. He lives with an amnesiac grim reaper who is in charge of taking deceased souls. Jongin doesn't want immortality anymore, but needs a human bride in order to end his long life. Meanwhile, Do Kyungsoo is a high school student who despite her painful reality, remains optimistic. She summons the goblin by chance and through various encounters, ended up falling in love with him.