Synopsis: Meikyuu Metro - Mezametara Saikyoushoku Datta node Shima Risu o Tsurete Shinsekai o Aruku

Shuu Abe awakens on the fiftieth underground level of Ootsuka Metro, a labyrinth filled with dangerous metro beasts. Tokyo, a once prosperous city, has been devastated by the Metro Overflow and Super Fungus Pollution for over a century, leaving Shuu in an unfamiliar place. "It's like starting at level one in a dungeon's lowest floor," he remarks. Despite the dire circumstances, Shuu and his companion, Tamiko the Carbuncle, vow to persist. By absorbing the Sporangium and mastering fungal abilities, they rise from the weakest to the strongest. Their journey from the bottom up is an extraordinary story of a person and a small animal. With the "Tokyo Tribunal" in ruins, "New Tokyo" has emerged - a world inhabited by thread people. This is the tale of a hunter thrown into this new realm, discovering new adventures.