How did the original god get the secret recipe of golden crab?

1, Mona's personal legendary mission (reflecting the seal of heaven) begins in the game. In this task line, the task will give the player the 40th recipe, which is the golden crab recipe.

2. It should be noted that the starting conditions of this task are: the player's adventure level should reach 38, and the tasks of "chapter of the owl" and "alibi of the night hero" should be completed.

You need to use the legendary key to unlock this task. Legend has it that you can get a key by completing a two-day daily task.