Su Sui'an is the ancient ferocious beast Taotie. He was accidentally bound by the system to the world of immortality and became a passerby in the book.
System: Your mission is to prevent the villain from turning dark and destroying the world.
Su Suian: Is there any meat to eat?
System: Yes...
Su Sui'an: OK, I'll take care of it.
Later, Su Sui'an discovered that the villain gave him more meat than the system!
System: No, just don't block it! Why have you become a villain too!
Su Suian: Hehe.
