Volume 1

Volume 1 is the first tankōbon volume of Nanatsu no Taizai.

Chapters

 * Chapter 1: The Seven Deadly Sins (七つの大罪)
 * Chapter 2: Sword of The Holy Knight (聖騎士の剣)
 * Chapter 3: Something I Must Do (自分でやるべきこと)
 * Chapter 4: The Sin of the Sleeping Forest (眠れる森の罪)
 * Chapter 5: Memory in Darkness (暗闇の記憶)

Fights and Events

 * Meliodas vs. Lord Twigo
 * Meliodas vs. Gilthunder

Chapter 1
The third princess of Liones, Elizabeth, finds Meliodas, who is the owner of the Boar Hat bar and is also one of the Seven Deadly Sins, being the Dragon's Sin of Wrath. The princess then joins him in his journey to find the other Deadly Sins in order to defeat the Holy Knights, who have orchastrated a coup d'état and have overthrown the king.

Chapter 2
Meliodas, Hawk and Elizabeth arrive at the village of Bernia, whose underground water source was recently sealed by a Holy Knight named Gilthunder, thus preventing the village from making the Bernia ale, which was their prime source of income, and giving another example of the Holy Knights' heartlessness and cruelty. After innumerable unsuccessful attempts of the villagers to remove the sword with which the source was blocked, Meliodas easily removes the object.

Chapter 3
Whilst a celebration was held in Boar Hat, and Meliodas was hailed as a savior by Bernia's villagers, Gilthunder, wanting to confirm if the removal of his sword was not an accident, threw a spear imbued with his power toward the town. Meliodas, however, easily stopped and threw the spear back, destroying Fort Solgales.

Chapter 4
Meliodas, Hawk and Elizabeth travel to the Forest of White Dreams that even Holy Knights avoid, and is a good place to hide from them. There, the Prankster Imps that inhabit the Forest of White Dreams attempt to confuse them by impersonating Hawk and Elizabeth in order to lead them away. After defeating them, they follow them and find the Serpent's Sin of Envy, Diane sleeping in the forest.

Chapter 5
Having woken woken up by the Prankster Imps, who apologize for letting Meliodas, Hawk and Elizabeth pass, as they believe them to be Holy Knights, Diane meets her captain for the first time in ten years. After a discussion about the events that caused them to be labelled as traitors, Gilthunder suddenly arrives and binds all of them with his lightning magic.