Dual Hunter: Dungeon King

In a time and space parallel to the real world, humans and underground cities coexist. The dungeon is the entrance to another world, full of monsters and treasures. Hunters are a group of humans who have awakened special abilities. They enter dungeons to hunt monsters and obtain resources to maintain the balance of the world. However, the rules of dungeons are quietly changing, and a mysterious force is merging multiple dungeons to form more dangerous "double dungeons" or even "multiple dungeons." The protagonist, Lin Ye, is an ordinary D-level hunter who awakened dual professional abilities in an accident - being both a "Shadow Assassin" and a "Light Guardian". He became the only hunter who could enter and control the "double dungeon", and was therefore involved in a huge conspiracy related to the survival of mankind.