The world has changed for the worse. All around the globe, portals have opened up, releasing all manner of hellish monsters and creatures onto the world. Thankfully, along with the manifestation of the portals, people suddenly awaken superhuman powers capable of stopping the otherworldly threat. Eventually, the portals and where they lead are called dungeons, and those who can manifest powers are known as hunters. Since hunters are the only humans able to kill these creatures with minimal mass casualties, every country is doing everything they can to encourage these hunters to enlist in their military to combat the dungeons. South Korea, in particular, comes up with a simple but effective offer. If a family has a hunter who enlists for a minimum of ten years, all of their siblings will be spared from having to join the military. Otherwise, every child will have to enlist for a minimum of two years. This causes an influx of parents adopting orphans, hoping they will become hunters so they can protect their biological children from being forced to enlist. Yeon-woo is one of these children, adopted by a family who has failed with two other adopted children, and whose young son, Jeong-woo, is their only biological child. Having been adopted and returned multiple times, Yeon-woo is determined to become a hunter and make this family keep him. This is partly because the family is extremely kind, but it's also because of his new little brother. While Jeong-woo doesn't seem to like Yeon-woo, Yeon-woo can't help but love Jeong-woo. But as time goes on, Yeon-woo's love for his little brother begins to change, and he's more determined than ever to get out of the house and enlist as soon as he can. Jeong-woo, though, wants nothing more than to keep his older brother home with him.

BL Library