A Butcher? I'm Unbeatable / (Dubbed) A Butcher? I'm Unbeatable

A martial heir works as a butcher for 10 years before going to find his family. He reunites with his sister and mother, yet is rejected by his father for his humble job and poor innate condition. When a powerful rival clan threaten his family, he drops his disguise. With only a butcher knife, how will he cut down his enemies and rule the scene?