Nanatsu no Taizai: Seisen no Shirushi

七つななつの大罪だいざい 聖戦せいせんの予兆よちょー

Having taken the kingdom of Leones back from Holy Knights, the Seven Deadly Sins, along with Elizabeth and Hawk, can finally enjoy the peaceful lives they earned. However, with premonitions of a new threat looming, their happy, ordinary days are about to end...