In this fanfic: Supernaturals' powers or forms start manifesting when they reach the age of 18. Before that age, everyone looks or acts just like a human does. The GMM Supernatural Academy is a place where supernaturals (students) above 18 can further their studies. It was established to protect them from being kidnapped or hurt by humans who envy or despise their abilities. What will happen after Off finds out that his roommate at the academy is actually someone named Gun from his high school? merman = male mermaid
7 parts