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七つの大罪
The “Seven Deadly Sins”—a group of evil knights who conspired to overthrow the kingdom of Britannia—were said to have been eradicated by the Holy Knights, although some claim that they still live. Ten years later, the Holy Knights have staged a Coup d'état and assassinated the king, becoming the new, tyrannical rulers of the kingdom. Elizabeth, the king's only daughter, sets out on a journey to find the “Seven Deadly Sins,” and to enlist their help in taking back the kingdom.
Ban searches purgatory for Meliodas. King, Deriri and the others head to Heaven's Theater to rescue Elizabeth, who's been abducted by Estarossa.
Reunited once again, Ban and Meliodas prepare to face the Demon King, who they suspect holds the key to their escape from purgatory.
With Wild now an ally, Meliodas brings Zeldris' tragic past to light as the newly formed trio make their way towards the Demon King.
Meliodas grapples with suddenly losing his memories of Estarossa. Zeldris, Chandler and Cusack threaten to overpower Merlin and the others.
Gowther reveals that his creator, the real Gowther, cast a forbidden spell on Mael and all those who knew him to end the Holy War 3,000 years ago.
Gowther takes on Mael to protect his friends. Diane also joins the battle, but the Archangel's power level continues to rise as he nears his final form.
Mael changes form after absorbing four of the Commandments. King soon overwhelms him with his Spirit Spear, but Gowther tries to save the Archangel.
Meliodas and the others have to defeat the Demon King before they can escape Purgatory and make their way to the world of the living.
Chandler and Cusack merge to form the all-powerful Original Demon. Merlin gives up any hope of victory, but Mael and King soon come to her aid.
As Meliodas absorbs every last one of the Ten Commandments, Merlin attempts a forbidden spell to stop the birth of a new Demon King.
Merlin's spell thwarts Meliodas' transformation. The Holy War seems to be over, but Elizabeth senses something is still terribly wrong.
Escaping purgatory, Ban faces the Demon King, who now possesses Meliodas’ body. Elizabeth and the others make their way into the spirit world.
Peace returns to the Kingdom of Liones. Although Elizabeth is still under a curse, Meliodas assures her there is a way to break it.
Now that Meliodas is the Demon King, he cannot remain on earth. Though his friends acknowledge his fate, they are unable to accept it.
Merlin rescues Elizabeth, who barely evades a falling boulder on her way to the Demon Realm with Meliodas. The Sins realise the Demon King is alive.
Elizabeth and Meliodas face the Demon King, who now possesses the body of Zeldris. Meanwhile, the Sins clash with a beast summoned by the Demon King.
With Escanor's aid, Meliodas and Gowther reach the spirit world, where they aim to split the Demon King and Zeldris back into their own bodies.
Diane destroys the source of the Demon King's magic. Meanwhile, Escanor continues fighting the Demon King at full power, exceeding his limits.
Escanor converts all of his life energy into magic to defeat the Demon King. Meliodas pleads with his comrade to stop, but Escanor refuses to listen.
Zeldris and the Sins corner the Demon King in both realms, but the King separates from his son's body and possesses Britannia itself as his new vessel.
