Suddenly, dungeons begin appearing all over Earth. Humanity gains “levels” to quantify their strength; among them, level 0 is considered the weakest and most discriminated class. Our protagonist, Hinata Suzuki, is labeled as level 0 and scorned by all. But even so, he dreams of becoming a dungeon explorer. At his new high school he meets the silver-haired S-rank latent ability beauty, Hinata Kamui—and unexpectedly, their paths draw together. What no one realizes is that the so-called worthless “level 0” may actually be the world’s strongest.