Those who are leaders in the world of cultivation have profound knowledge and strict rules. The founder of the academy set an iron rule: the position of senior brother will always be a mortal. For thousands of years, no matter how the sect rises or falls, this rule has never wavered. Su Yan: Contemporary senior brother. A mortal with a weak appearance and no breath. He is calm and simple in his words and deeds, and often does trivial tasks such as sweeping the floor, cooking noodles, settling accounts, and growing vegetables. Possessing an **extremely special "existence"**, he can ignore conventional cultivation logic and achieve incredible results with "mortal means". Its "Tao" is closely related to the foundation of Tiandaoyuan.