I am in the book, and I have no fixed name. I am a small character used by the protagonists to take revenge on the villain after the dust of the story has settled.
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Unit 1: [The failed omega fake young master was sold into the underworld]
Unit 2: [Put the harmful guide in the cell of the violent sentry]
Unit 3: [Fifty years after Master ascended, I found her cauldron in the secret room]
Unit 4: [A deceitful wizard, but now he meets the real devil]
Purpose: Don't do evil for small things