SSS-RANK: Super Extraction System

Leon Vale's world shatters when he's branded F-Rank, deemed an Empty Core incapable of wielding power in Neo-Veridia, a city where strength dictates destiny. While the elite are celebrated, those like Leon are relegated to menial tasks. However, a crimson moon heralds the arrival of creatures that breach the city's defenses. Witnessing his family endangered, an ancient power awakens within Leon's Empty Core: the Shadow Extraction System. This system allows Leon to absorb energy and grow stronger from defeated creatures. As he consumes shadows, he is drawn to an enigmatic void, a place beyond physical reality where a silent entity beckons him. This newfound power, however, attracts dangerous attention. The Evernight Alliance, comprising mythical beings like vampires and werewolves, is alerted to the dark energy Leon is generating and begins hunting him, disrupting the city and its dungeon cores. Leon must navigate a perilous path, secretly accumulating strength to protect his family and maintain the facade of powerlessness at school. This ancient force now claims him as its successor, revealing his F-Rank status as a deception. His Empty Core, far from broken, thrives on the darkness he consumes, pushing him towards an unfathomable destiny. The Crimson Moon signals the beginning of a conflict, and Leon's journey is just starting.