The Mysterious Key and the Forbidden Door

There is an ancient legend circulating on the mountain. It is said that there is a forbidden door hidden in the deepest part of the mountain. Only those who hold the mysterious key can open it and enter a wonderful journey into another world. However, the existence of this forbidden door and the mysterious key has always been a mystery. Countless explorers and treasure hunters have tried to find them, but without exception, they have all failed. Some people have even disappeared, and their lives and deaths are uncertain. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.