Attack on Titan: Before the Fall (Manga)

Attack on Titan: Before the Fall (進撃の巨人 Before the fall) is a currently ongoing manga by Satoshi Shiki, based on the light novels by Ryou Suzukaze. This manga serves as an official prequel to main story by Hajime Isayama. There are currently eight chapters and a prologue published.

Kodansha USA has licenced this manga and has distributed it starting March, 2014.

Plot
This story takes place 70 years before the main story starts, when a titan appeared inside Wall Maria, a story which no one has spoken of since. Among the titan's vomit is Elena Munsell, the leader of the cult which had let the titan into the walls. Two soldiers, Sorum Humé and Carlo Pikale, discover that her child is still alive inside her. 13 years later a nobleman illegally purchases 'The Child Of Titans', Kuklo, from the black market. He takes him to the celler and chains him to the wall, to starve and wallow in his own filth. After a while, the nobleman takes his son, Xavi, down to abuse Kuklo.

This continues until the noblemans daughter, Sharle, goes down to the cellar, scared out of her wits and meaning to kill Kuklo, but instead sees him as a human and makes an alliance with him. One day they get the news Sharle is going to be married off. They make plans to escape.