Nanatsu no Taizai: Funnu no Shinpan

Elizabeth has only days left before the ancient curse on her claims her life again. To save her, Meliodas and Ban enter the Demon Realm to challenge the Demon King himself, while the other Sins and their allies fight separate battles against Zeldris, Estarossa, and the powers still driving the Holy War. Rescue attempts and desperate confrontations begin exposing the truth behind relationships that stretch back three thousand years, sometimes placing old friends on opposite sides. As the fate of Meliodas and Elizabeth approaches its long-awaited turning point, the war moves toward its conclusion, but the power that created their suffering has no intention of letting anyone escape the cycle of curses easily.