season 1 episode 1 introduces the SWORD area, a town where five rival gangs, Sannoh Rengokai, White Rascals, Oya Koukou, Rude Boys, and Daruma Ikka, have established their dominance. The episode primarily focuses on Sannoh Rengokai, a group aiming to maintain peace in their territory, led by Cobra, Yamato, Dan, and Tettsu. Their peaceful intentions are disrupted when a new figure arrives, threatening to alter the balance of power within SWORD.