The Rings; an item that greatly helps humanity with everyday daily life yet a group of people, Blacklisters, uses them for the purpose of chaos. An association to counter the Blacklisters was then established. They are known as Lighters. Han Junho who was content with his normal life alongside his best friend, Kim Minju suddenly got pulled into the conflict with no way to turn back. And from that point on, he also learned the secret of his forgotten past. (This story is a work of fiction and any similarities with real-life events is a pure coincidence)