The NPC's disappearance made it impossible to continue playing the game.

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We11R0#0362 wrote:

Hello, when I completed the "Great Search" mission, usually I needed to click on the dialogue box of the character in black attire. But I chose to directly return to the main city, but after returning, I found that the NPC was gone. I tried to replay the map and kill the boss again, but it still didn't work. The NPC still didn't appear. Now I can't continue the game. I hope you can help me solve this problem.