Ten years ago, portals began to appear all over the world. These portals have the unique ability to connect the world to other dimensions, dungeons, or parallel worlds. At the same time, some people developed abilities to hunt down these portals. Those who undergo an Awakening are called Hunters. Sung Jin Woo is considered the weakest among the E-rank Hunters... in other words, the weakest among the weak. He is so feeble that his fellow Hunters nickname him "The Weak." With a team of Hunters, he ventures into a D-rank dungeon. Unfortunately, the team gets trapped in a room with monsters that are far beyond the dungeon's level... a massacre ensues. Miraculously, at death's door, Sung Jin Woo manages to acquire a rather peculiar ability. Will Sung Jin Woo succeed in becoming the most powerful Hunter while overcoming trials and conspiracies?