Hazure Skill "Level Up" no Sei de Party wo Tsuihou Sareta Shounen wa, Level wo Agete Butsuri de Naguru

In this world, every individual is bestowed with a unique talent known as a "skill" upon reaching the age of fifteen. Chamber was once a proud member of Akatsuki, a distinguished adventuring party composed entirely of young prodigies who had made a name for themselves in their city. However, his position within the group was abruptly revoked when he awakened a seemingly incomprehensible skill called "Level Up." Because its effects were entirely unclear, his comrades—who had all received far more formidable and easily understood abilities—deemed him a liability and cast him out without hesitation. Left to fend for himself, Chamber refused to surrender his dreams and chose to continue his journey as a solo adventurer. It was during these solitary endeavors that he finally uncovered the hidden truth behind his supposedly useless ability. He realized that "Level Up" operated on a devastatingly simple principle: the more enemies he defeated, the higher his level climbed, granting him ever-increasing physical strength. Armed with this revelation, Chamber's path took a dramatic turn following a fateful encounter with a mysterious girl. No longer dismissed as weak, he sets forth on a relentless pursuit of ultimate power, determined to prove his true worth through sheer force.