The term 'VILLAIN's Vanquisher' is a reference to a HERO, which can be represented by the four-letter word HERO. A HERO is a person who is admired for their courage, outstanding achievements, or noble qualities. They are often seen as a role model and are celebrated for their heroic deeds. In literature, heroes are often the protagonists of stories and are tasked with defeating the VILLAIN. Therefore, the term 'VILLAIN's Vanquisher' is used to describe a HERO who has successfully defeated a VILLAIN.