Monsta X members became a clan when they discovered a flower that could grant them good health, immortality and strength. They, soon, became addicted to it. They continued to consume the blue flower until the goodness turned bad. The powers they used to have grew weak. Instead, they became greedy, violent, selfish and evil. KNK, on the other hand, was another group who lingers in the woods. Since the world turned into chaos after the war between Monsta X clan and the world, they ran away - not wanting to become a part of the chaotic world. However, one of them became desperate when he became sick. Youjin fell sick since his body was usually weak. Minhyuk (Monsta X) found him and offered Youjin a solution - the blue flower. Youjin took the remedy. From there, KNK stopped being cowards and fight for what's right. But righteousness requires sacrifices. Who would live? Who would die? Who would win?