Naoya Nifuji (二藤 尚哉 Nifuji Naoya) is a university student and the younger brother of Hirotaka Nifuji who wants the best for Hirotaka and is genuinely happy when good things happen to him. He works as a barista in a coffee shop that is next to the office building where his brother is working to. Naoya has a cheerful personality who is often portrayed as a cat due to his cat-like smile and he seems to love his work as a barista since having satisfied customers makes him contented.