あなた may または my not herd of Humphrey and Kate,but あなた haven't herd of the packs out west.Two tribes,named E6 and and E7.They stand for Estras6 and Estras7.This story is about a lone 狼, オオカミ that came back from his mission to find destruction.AS he entered his native packs'(E7)camp,he saw the alpha 狼, オオカミ with teeth marks in his neck that look exactly like ones from another pack.when he left his camp that was burning slowly,he saw the E6 camp suffered the same fate. Leaving the valley that held the two camps the lone 狼, オオカミ only felt the sharp desire revenge and in memory named himself E13.