The Daughter of Fog

The Daughter of Fog (霧ノ娘) is a short story found in Epic of Evil, The Daughter of Evil Fanbook, (悪ノ叙事詩 悪ノ娘ファンブック), released on Aug. 25, 2012. The story reveals Gast Venom's past and the last Vessel of Sin.

Demon of Asmodean
Zenon had a hard time growing up. His mother had hanged herself when he was only six years old, leaving him and Sarah to fend off for themselves. Zenon had possession of an antique sword, in which he always used while stealing food. When Zenon reached twelve, Sarah died as well. It was then Zenon left Elphegort. As he traveled, he encountered an old woman with a red cat. Thinking that she is an easy target, Zenon drew his sword and prepared to attack.

The next thing Zenon knew is that he woke up in a room full of maids. He was approached by the Emperor of Asmodean, who hired him to be his servant. Although Zenon lost his sword to the old woman, his swordplay is still unmatched. He ended up working with a nine year old general named Mariam Futapie and after fighting some battles, he earned the title of Gast Venom. Mariam later defected over to Lucifenia.

While battling against the new fledging kingdom of Lucifenia, Gast and the rest of his unit under the command of General Shalgham were stationed at the Misty Mountains. Gast came across a strange altar and as he approached it, he saw Sarah's spirit. Sarah told Gast that this altar is a gateway between this world and the Hellish Yard, and Sarah can visit the normal world every foggy night.

The rest of Gast's unit suddenly started to fall ill. Shalgham suspected that the altar had something to do with this illness and he orders everyone to destroy the altar. Gast protested and left the army. He then begged Sarah to come with him. Unfortunately, Sarah cannot leave this mountain due to the altar but Sarah tells Gast that there is a way to link the Hellish Yard to the present world. Sarah then reveals that she had the same sword that Gast lost a while ago.

As Shalgham approached, Irina Clockworker appeared before Gast. Irina told him that she was the one who gave his ancestor, Duke Sateriajis Venomania, the Venom Sword in the first place. Gast attempted to kill Irina but he got enveloped in flames. When Gast woke up, the Venom Sword was gone and Shalgham's corpse lay before him. Gast got arrested and is tried for war crimes but the evidence was not enough to fully convict him. After he is released, Gast went back to the altar and is glad to see that it is intact. But Sarah did not appear.

Gast eventually met Elluka Clockworker and he became her personal guard for a while, learning about the Seven Deadly Sins from her. Gast read many books until he stumbled across a few words that might link to the Deadly Sins: Resurrection of the Dead.

The letter from Yvette to Yukina
In a letter addressed to Yukina Freesis, Yvette, the head of Eldoh Monastery told the truth behind those events. General Shalgham was in fact Yvette's stepfather and Yvette had always kept with her a Golden Key, which apparently can change shape. One day, Yvette's family is visited by a woman with silver hair, a man with green hair, and an old woman with a red cat. Through them, Shalgham learned that Gast Venom is a descendant of Sateriajis Venomania. Because of this, he wanted to kill Gast and the only way to do it is to have him legally tried for disobeying orders.

Shalgham had Gast and the rest of his unit camped near the altar and had Yvette act as Sarah's spirit and the deception worked. Shalgham then handed Yvette the Venom Sword to give to Gast. But because she had gotten close to Gast, Yvette wanted to be with him.

Yvette was the one who killed Shalgham with the Golden Key, which morphed into a Golden Knife. Because the Emperor of Asmodean still liked Gast, he banished him rather than have him executed. Yvette joined Eldoh Monastery later and had the Key sealed and hidden. However, the Key is lost after Irina took control of Mikina Freesis.

That Key was a Vessel of Sin. Yvette tells Yukina that if given the chance, she would find the Key again before it unleashes calamity upon the world.

Characters

 * Gast Venom
 * Sarah Venom
 * Irina Clockworker
 * Mariam Futapie
 * General Shalgham
 * Elluka Clockworker
 * Yvette
 * Yukina Freesis