Akame Ga Kill! Zero:The Warrior name Fantomu

Tatsumi left his village to become a warrior on a journey who passes the village trailer to a tamed ancient saber called the Darksaber to save the world from their darkest hour. He makes a promise to his friends to meet them again at the Capital at the age of 16. He wears an armor made from vibranium and he joins Elite Seven in his journey to become a warrior. Change later to M