A mysterious world has been uncovered, inhabited by numerous perilous monsters and creatures. Many of these entities remain concealed within the shadows of Earth, relentlessly hunting for prey. Mateshi, a young teenager, aspires to unveil the enigmas of this realm alongside an extermination team, aiming to safeguard humanity from its impending dangers. His objective is to secure a better life, mirroring the aspirations of others. Yet, the question remains: can he achieve it?