Deep in the labyrinth city of Nagaon, there live two explorer candidates with dreams - Yuno and Lucerus.The city is famous for its intricate labyrinths and endless supply of evil.Although Yuno and Lucerus are young, they have already set their lofty ambitions to become top explorers.

They travel through the maze every day and learn various combat skills and maze knowledge.Yunuo is good at using ranged weapons, while Lucerus is proficient in melee combat skills.The two support each other and make progress together, hoping that one day they can uncover the secrets of the maze and protect the tranquility of the city.

However, one day, the peaceful life was completely broken.A group of vicious machine demons suddenly appeared in the city. They wreaked havoc on the city and threatened the safety of residents.Yunuo and Lucerus decided to stand up and protect their homeland.

The battle was extremely fierce, Yuno and Lucerus tried their best, but the machine demons were numerous and powerful.In a confrontation with a machine demon, Lucerus was unfortunately dismembered by the machine demon, and Yunuo was also severely injured.Facing the threat of death, Yunuo felt unprecedented despair.

Just when she thought she was going to die on the spot, a man with a dull knife appeared.Wearing black clothes and a mysterious mask on his face, he looked powerful and majestic.The man didn't say anything, he just silently waved the blunt knife in his hand, repelling the machine demons approaching Yuno one by one.

Yuno was so grateful that she asked the man for advice on how to become a powerful explorer.The man told her that becoming an excellent explorer requires not only strong force, but also wisdom and courage.He taught Yuno many fighting techniques and knowledge of the labyrinth, rekindling hope in her despair.

With the help of the mysterious man, Yunuo gradually recovered and started a new adventure.She goes deep into the maze, challenges more powerful machine demons, and constantly improves her strength.She always remembers the sacrifice of Lucerne and the teachings of the mysterious man, and strives to become a true explorer.