Shen Yu, also known as Chang Guang, entered the Demon Realm in order to become the strongest and best Demon Lord in history.
I shall be the devil among devils, and all the devils will kowtow!
PS: In a semi-invincible novel, the character's IQ depends on the author's IQ. The heroine is a villain, not a good person, so there will be many very unpeaceful behaviors.
Intention: Never forget the original intention