Nine years ago, humankind almost perished the day monsters came out of the Cracks– aka dungeons– that appeared all over the world.When all hope seemed to be lost, a select few awakened as Hunters equipped with a System.Thanks to them, the civilization recovered faster than one would expect after the apocalypse.However, another conflict presented itself later: the more the Hunters used their powers, the quicker they lost their sanity.Fortunately, among the Awakened People, there is a group classified by the System as Guides– and only these Guides have the power to soothe the Hunters and bring them back to their senses.Sounds great, right?But what happens when a Civilian is in a relationship with a Hunter who has a high matching rate with their Guide?“Let’s break up, Wonhee.”Yep, this is what happens when your Hunter boyfriend has a 76% matching rate with his Guide.Wonhee was dumped by her long-time boyfriend because she’s just a Civilian…… or so she thought.