In a medieval-like world, the Holy Knights of Britannia protect the kingdom using powerful magic. However, a group of legendary knights, the "Seven Deadly Sins," were believed to have betrayed their homeland years ago. Though defeated, rumors persisted that they were still alive. Ten years later, the Holy Knights stage a coup and become the tyrannical rulers of Liones. *Nanatsu no Taizai* follows Princess Elizabeth, the third princess of Liones, on her quest to find the Seven Deadly Sins. With their help, she seeks to reclaim her kingdom and bring justice to a world ruled by corruption.