"Meikyuu: Labyrinth Kingdom" is set in a world where the entire planet has been transformed into a massive, ever-shifting labyrinth. This labyrinthine world is divided into countless layers, each filled with treacherous traps, monstrous creatures, and ancient mysteries. The labyrinth is governed by a unique system where survival and progress depend on solving its puzzles and overcoming its challenges. The story centers on Taiga, a young man who finds himself transported to this labyrinthine world after a mysterious event. Taiga is determined to navigate the labyrinth and uncover the truth behind its existence while striving to return to his original world.

Taiga is joined by a diverse group of companions, each with their own motivations and abilities. Among them is Akira, a skilled warrior with a tragic past, and Yui, a resourceful and intelligent strategist. Together, they form a party to tackle the labyrinth's dangers, relying on teamwork, ingenuity, and combat prowess. As they delve deeper into the labyrinth, they encounter other factions and adventurers, some of whom become allies while others pose significant threats. The labyrinth itself is a character of sorts, constantly changing and presenting new obstacles, forcing the group to adapt and grow stronger.

The narrative explores themes of survival, camaraderie, and the pursuit of knowledge. Taiga and his companions uncover fragments of the labyrinth's history, revealing that it was created by an ancient civilization for reasons that remain shrouded in mystery. Along the way, they face moral dilemmas and personal challenges, testing their resolve and bonds. The story balances action-packed sequences with moments of introspection, as the characters grapple with their circumstances and the choices they must make to survive. As the group progresses, they edge closer to uncovering the labyrinth's ultimate secret, which holds the key to their fate and the fate of the world itself.