Rouga Zanma is the main protagonist of Big Bang Age, Big Bang Beat, and Big Bang Beat Revolve. He is a man with a strong sense of justice who enjoys a good fight. He seeks to dominate the entire nation with his group, the Wolf Fang Brigade, and bring the wild Special Students of Japan under control. Rouga is old friends with Kunagi Tenrou, and cares quite a bit for her, although that does not seem to stop him from showing affection towards other women as well, such as the Nakanishi sisters and Senna Kyoudou.