The War Hammer

In the year of 854, at the announcement festival in Liberio plaza, while Willy Tybur was declaring war on the Eldians of Paradis, Eren transformed into a Titan, devoured him and violently started killing military officials. There were civilians in the crowd including children.
The Tybur family was keeping in secret the identity of the War Hammer, this Titan remained unused in battle for a century. Among the crowd was the person who was holding the power of the War Hammer Titan, who then transformed and the battle began.

Chapter 101: The War Hammer Titan

Based on Hajime Isayama's Attack on Titan characters, the War Hammer and Attack Titan.