The DLC name is "Dire Destiny ：Time Travel-Gambler

Background introduction of the DLC

An adventurer who adheres to nihilism. The female gambler lives on the edge between life and death, managing to turn the elusive possibility of nothingness to her advantage. Her boundless greed prevents her from enjoying what she has already gained.

DLC Features

• New Character: Gambler. The Gambler will have a unique luck mechanism that will greatly affect the battle, and the impact of good and bad luck will be significant, full of fun.
  
• Exclusive Cards: The Gambler will have a set of brand new exclusive lucky cards, allowing players to try out new battle mechanics and gameplay.