After saving the Kingdom of Liones from the 10 Commandments, Meliodas and the Seven Deadly Sins are enjoying their time off. However, things aren't as peaceful as they seem, as the Sins are put through various trials to become strong enough to defeat the 10 Commandments and to overcome their past trauma. With help from past figures, the Sins are tasked with defeating the 10 Commandments and putting an end to their evil plans that began ten thousand years ago. The Sins begin to uncover the truth about each other, as well as those who stood before them. With this knowledge in hand, the battle against the 10 Commandments has only just begun. Nanatsu no Taizai: Kamigami no Gekirin continues to follow the Seven Deadly Sins and those that they meet on their journey. Through their adventures, they realize that their actions have had greater consequences on the present than they could have ever expected. [Written by MAL Rewrite]

Specials included with the BD/DVD releases.

Mage's Association members Rin Toosaka and Luviagelita "Luvia" Edelfelt are tasked with finding and retrieving seven Class Cards, medieval artifacts containing the life essence of legendary Heroic Spirits. To aid them in their mission, they are granted the power of Ruby and Sapphire, two sentient Kaleidosticks that would enable them to transform themselves into magical girls and drastically increase their abilities. However, the two mages are on anything but good terms, prompting the Kaleidosticks to abandon them in search for new masters. They stumble upon two young schoolgirls—Illyasviel von Einzbern and Miyu—and quickly convince them to form a contract. With their new powers and responsibilities, Illya and Miyu set forth to collect all the Class Cards. [Written by MAL Rewrite]

Tatsuko of class 5-1 is really excited about the upcoming school sports festival, her proposal for a new "Eel Scooping" event is less than enthusiastically received though, especially by Suzuka. Illya mentions the main event dance to Miyu, and as teacher Taiga Fujimura points out, it entails a huge reward, but will require quite a bit of practice. And so the close friends: sarcastic Nanaki, level-headed Suzuka, excitable Tatsuko, energetic Illya, shy Mimi, and reserved but athletic Miyu are off to win the dance event for the honour of their class and for Fujimura, who seems to have some saucy bet going on that she most definitely needs to win, or so the girls misunderstand. (Source: AniDB)