A thousand years after Earth was invaded by monsters, Hunters emerged, empowered with spirit power to combat creatures emerging from dimensional gates. 

Having failed the Hunter Awakening Exam three times, Lucien Black assumes a support role in a world where strength is paramount. However, a near-fatal gate incident triggers his ability to absorb the spirit essence of fallen monsters, thereby increasing his strength with each battle. 

As ancient gates reopen and powerful hunters disappear, Lucien comes to realize that his awakening may be linked to a far greater threat, one that could potentially destroy humanity.