The metal ninja and his sword

Ethan0508 is the Ninja of metal. He was the son of the Weapon creator who died fighting the Hypnobrai. He was adopted by the Spinjitsu Master. He left before the snake war to fight in it. He never knew what happened to him and still doesn't .He became a ninja to defeat the Hypnobrai and avenge his father's death. When the great devourer came he saw someone that looked like the Spinjitsu Master  but younger ."Could it be my brother?" he thought. He chased after him but never found him.