Ten Billions of Yin and Yang Reversal Pills at the Beginning

At the beginning, I traveled to a parallel world and got the system. The novice reward was actually tens of billions of Yin-Yang Reversal Pills. Pill: Yin and Yang Reversal Pill Effect: After use, the gender will change immediately, and the appearance will be corrected by +10 Introduction: Do you want to be a handsome man and a beautiful woman? Just use it Zhou Yang: "As a sister who only has a younger brother, what else can I think..." The life of a person with elixir is so boring and unpretentious This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.