Dowon chose to be a freelance guide for the freedom to do other things, but his cold and demanding esper, Kwonwoo, calls him for guiding every day without fail. Although he thinks he has his hands full already, he's proven wrong when Kwonwoo loses eight years of his memories and his powers due to an accident on the job. Now it's up to Dowon to restore both by giving the mentally 20-year-old Kwonwoo the kind of intimate guiding he always refused before. But surprisingly, this cheery and affectionate Kwonwoo seems all too eager to take things to the next level...