The Silent Dragon's Roar

The protagonist is an ordinary office worker who possesses the Dragon Clan's secret art of flute-playing, yet has not a trace of dragon qi. One day, his boss introduces him to a Dragon Clan elder. At his boss's urging, he demonstrates his flute-playing technique and is chosen by the elder as the successor to the "Hidden Immortal." After moving into the elder's residence, he meets the woman he loves. She is being harassed by the Dragon Clan prince and has no way to escape. Seizing the opportunity, the protagonist kills the prince and continues to "scrape by" in the residence with the woman he loves.