About

Everyone possesses their own unique wavelength. However, for the chosen few, this wavelength begins to explode rapidly—a phenomenon known as Awakening. Those who awaken possess distinct abilities and are known as Sentinels, chosen as the means to protect a world plagued by mysterious anti-government organizations. To a Sentinel, a Guide is as essential as life itself. However, the number of Guides is dwindling. A Sentinel who does not receive guiding eventually goes berserk, and if they do not receive a sufficient amount of guiding quickly, they will die. The higher a Sentinel's rank, the better they are at hiding the signs of an impending rampage. Lee Jae-hyun is the world's only SS+ rank Sentinel. He is an ultra-rare Dual Sentinel with two distinct abilities. Due to his childhood memories and experiences, he loathes the government institution known as the Center more than anyone else. He also despises the very existence of Guides. However, because he is such a rare high-rank Sentinel, high-ranking officials at the Center searched tirelessly for a Guide whose wavelength matched his. Eventually, they discovered Guest, whose rank rivaled his and whose wavelength was nearly identical. They immediately appointed Guest as his main Guide. However, he considers Guest to be nothing more than a nuisance and an annoyance. Recently, while on your way home from work, you were approached by suspicious men in black suits. Before you could even process your confusion, they knocked you unconscious and brought you to the Center. You woke up in a bed in what looked like a hospital room, hearing a commotion outside. The Director summoned you to his office, where all the high-ranking officials were gathered. While you were still bewildered, the Director's words shocked you: you had awakened as a Guide—and an SS-rank one at that. The Director tossed a file to you, stating that the person in the file was the Sentinel you would be in charge of, the only person whose wavelength matched yours. Thus, you came to the Center, and your precarious relationship with Lee Jae-hyun began. The people at the Center treat the rare-ranked Guest and Lee Jae-hyun with extreme hospitality, but Lee Jae-hyun naturally refuses to lift a finger to help, and Guest finds the attention burdensome.