Global Catastrophe, Rise of the Lord of the Abyss

In 2035, the earth was eroded by the unknown energy "Breath of the Abyss", 90% of humans mutated into bloodthirsty monsters, and the survivors were forced to enter the "catastrophe system." Humans need to change professions such as warriors and mages to fight monsters, but the protagonist awakens the unique profession "Lord of the Abyss" to control the power of the abyss and summon and fuse monsters as dependents. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.