The so-called hunter is to explore important cultural heritage and rare animals and plants and protect them, and also to catch the people who are major suspects. They are both professions and class hunters with license systems. The Hunter Association holds strict examinations every year. Only qualified people will get the hunter license. It is said that only tens of thousands of participants, or even hundreds of thousands of participants can use the license according to their own wishes. They have various rights (such as free use of 90℅ public facilities in various countries), but they must also choose to be the hunter of their own kind and fulfill their obligations. For example, food hunters who travel around the world to seek delicious ingredients, private hunters employed by people, treasure hunters who pursue gold, silver and treasures after strict tests, search for many unknown fantasy beast hunters, hunters who hunt for chasing the tutors or the rule hunters, etc.