Nanatsu no Taizai - The Seven Deadly Sins - Unjust Sin (日本語版七つの大罪 -Unjust Sin-) is an action-adventure game developed by Bandai Namco Entertainment for the Nintendo 3DS. The game is based on the popular manga and anime series Nanatsu no Taizai (The Seven Deadly Sins) and follows the adventures of the seven knights as they battle against the forces of evil. Players take control of the main character, Meliodas, and his allies as they battle their way through a variety of enemies and obstacles. The game features a mix of action and puzzle-solving as players explore the world of Britannia, meet new characters, and unlock new abilities. The game also features a wide range of customization options, allowing players to customize their characters and weapons. With its vibrant visuals and exciting gameplay, Nanatsu no Taizai - The Seven Deadly Sins - Unjust Sin is a great adventure game for fans of the series.