Genie noticed that many HAAKERs have reported difficulty finding the entrance to trigger the DLC, so we've prepared a detailed explanation for you. Please see below for more information.
【Detailed Steps】
Condition A: Defeat Geal and report Ironhead.
Condition B: Defeat Geal without reporting Ironhead - Talk to Yaam until she disappears (route: Subway Tunnel - Anthony Hill (All Direction Dash) - Anthony Hill (Robot Shelter)- World Map (A Call from Yaam)- North Station Yaam Shelter.
Condition C: This is a mysterial entrance for HAAKERs to discover on their own. Hint: Complete it by talking to Yaam.
After completing any one of the above conditions A, B, or C (not all!), go to the 444 Bunker area, and come to the stone door with a rabbit symbol. Interact with it to enter the mysterious secret passage and start the DLC adventure