Cheon Hajin went from commanding thousands to being locked in a dark warehouse as the trash of the Byeok family. His new body is fragile, his reputation is in tatters, and his only inheritance is debt. However, the soul inside is that of a grandmaster. With his knowledge of forbidden techniques and the strategic mind of an alliance leader, Hajin begins to "clean" his new life. From the family estate to the wider martial world, he is determined to achieve heights he never reached before starting with those who dare to look down on the man formerly known as a failure.