Luo's feat of whistling for nine days is his grandmaster Zhu. According to relevant public information, Luo was raised by Taoist Xuanwu, who was Luo's father's rival in love in his early years. He is not bad in nature, but he doesn't want to teach Luo Kung Fu. Luo's real teacher is Master Zhu, and he is also the only one who has won the Wutangmen in the nine-day crane roar.