Exploring the Yin and Yang of the Demonic Path in All Realms

He Xi originally lived a mediocre life in modern times. One time, while exploring an ancient mysterious castle with his companions, he was transported to the Republic of China by a mysterious force because of deciphering an ancient nursery rhyme. In the Republic of China, she and a member of another family bonded over the mysterious Yin-Yang Pendant, and together they embarked on a journey to find the Divine Sword and collect the "Record of Demons and Gods" and the "Monster Suppression Guide". The villains secretly sabotage them in an attempt to prevent them from gaining the power to fight against monsters and monsters. The mysterious man guides them to the world to collect fragments of the "Mysterious Codex of Demons". However, time is running out, demons and monsters are raging, and the world is in danger. He Xi still lacks abilities and faces many dangers in different harsh environments in the world. He also misunderstands his helpers due to misguidance by villains. At the same time, she had emotional entanglements with her companions during the adventure. However, He Xi relies on his pragmatism and adaptability, and uses modern knowledge to grow up in difficult situations. He strives to collect the pieces to fight against monsters and monsters and protect the world. In the process, he is constantly faced with difficult choices between emotions and self-reliance.