You Are Invincible, Please Don't Retreat!

Traveling to a fantasy world, Li Xuan became a prince at the beginning, but was demoted to the frontier and had to wait for death. But he never expected that after accidentally obtaining the Great Emperor System, Li Xuan would directly start a counterattack in life. "Ding! Sign in successfully and get the Supreme Sword Body!" "Ding! Sign in successfully, get Ziwei Sky Fire!" He was imprisoned in the back mountain for seven years and signed for seven years. Suddenly one day, the sect encountered a crisis. Li Xuan made a strong appearance, only to find that he was invincible. "Is there anyone else who can fight!"